WO1997003974A2 - Chromanderivate, deren herstellung und deren verwendung als stabilisatoren von organischen material gegenüber licht, sauerstoff un wärme - Google Patents
Chromanderivate, deren herstellung und deren verwendung als stabilisatoren von organischen material gegenüber licht, sauerstoff un wärme Download PDFInfo
- Publication number
- WO1997003974A2 WO1997003974A2 PCT/EP1996/003008 EP9603008W WO9703974A2 WO 1997003974 A2 WO1997003974 A2 WO 1997003974A2 EP 9603008 W EP9603008 W EP 9603008W WO 9703974 A2 WO9703974 A2 WO 9703974A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxygen
- chroman derivatives
- heat
- group
- radical
- Prior art date
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- VZWXIQHBIQLMPN-UHFFFAOYSA-N chromane Chemical class C1=CC=C2CCCOC2=C1 VZWXIQHBIQLMPN-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000003381 stabilizer Substances 0.000 title claims abstract description 21
- 239000011368 organic material Substances 0.000 title claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 13
- 239000001301 oxygen Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims description 9
- -1 -COOR?3¿ Chemical group 0.000 claims abstract description 51
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 7
- 125000001033 ether group Chemical group 0.000 claims abstract description 6
- 125000004430 oxygen atom Chemical group O* 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims description 7
- 229910000042 hydrogen bromide Inorganic materials 0.000 claims description 7
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- VQZATFXCJMHUNW-UHFFFAOYSA-N 5-(bromomethyl)-3,4-dihydro-2h-chromene Chemical compound O1CCCC2=C1C=CC=C2CBr VQZATFXCJMHUNW-UHFFFAOYSA-N 0.000 claims description 4
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
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- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
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- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
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- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
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- 238000009835 boiling Methods 0.000 description 1
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- JHAYEQICABJSTP-UHFFFAOYSA-N decoquinate Chemical group N1C=C(C(=O)OCC)C(=O)C2=C1C=C(OCC)C(OCCCCCCCCCC)=C2 JHAYEQICABJSTP-UHFFFAOYSA-N 0.000 description 1
- 125000004915 dibutylamino group Chemical group C(CCC)N(CCCC)* 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002168 ethanoic acid esters Chemical class 0.000 description 1
- QBKVWLAQSQPTNL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate;styrene Chemical compound CCOC(=O)C(C)=C.C=CC1=CC=CC=C1 QBKVWLAQSQPTNL-UHFFFAOYSA-N 0.000 description 1
- CEIPQQODRKXDSB-UHFFFAOYSA-N ethyl 3-(6-hydroxynaphthalen-2-yl)-1H-indazole-5-carboximidate dihydrochloride Chemical compound Cl.Cl.C1=C(O)C=CC2=CC(C3=NNC4=CC=C(C=C43)C(=N)OCC)=CC=C21 CEIPQQODRKXDSB-UHFFFAOYSA-N 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 125000001189 phytyl group Chemical group [H]C([*])([H])/C([H])=C(C([H])([H])[H])/C([H])([H])C([H])([H])C([H])([H])[C@@](C([H])([H])[H])([H])C([H])([H])C([H])([H])C([H])([H])[C@@](C([H])([H])[H])([H])C([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])C([H])([H])[H] 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003586 protic polar solvent Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- KZJZFUHYAZHJJA-UHFFFAOYSA-N sodium;hexan-1-olate Chemical compound [Na+].CCCCCC[O-] KZJZFUHYAZHJJA-UHFFFAOYSA-N 0.000 description 1
- WBQTXTBONIWRGK-UHFFFAOYSA-N sodium;propan-2-olate Chemical compound [Na+].CC(C)[O-] WBQTXTBONIWRGK-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011145 styrene acrylonitrile resin Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- RKBCYCFRFCNLTO-UHFFFAOYSA-N triisopropylamine Chemical compound CC(C)N(C(C)C)C(C)C RKBCYCFRFCNLTO-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003712 vitamin E derivatives Chemical class 0.000 description 1
- 150000003772 α-tocopherols Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
Definitions
- the present invention relates to chroman derivatives of the general formula 1
- R 1 is an unsubstituted or substituted C 6 "C 2 o-aryl or aryloxy radical, a C 1 -C 20 alkoxy group, -CN, -COOR 3 , -COOH or -CONH 2 ,
- R 2 is a C-organic radical with 8-30 C atoms and
- R 3 is an alkyl radical having 1 to 20 carbon atoms, in which the carbon chain can be interrupted by ether oxygen atoms 30.
- the invention further relates to a process for the preparation of the compounds I according to the invention, the use of these
- the chroman derivative vitamin E ( ⁇ -tocopherol) is a natural protective factor with a stabilizing effect against the harmful effects of light, oxygen and heat.
- the use of vitamin E to stabilize plastics is e.g. out
- the present invention was therefore based on new chroman derivatives with improved properties, in particular with high thermal stability and low volatility.
- Suitable radicals R 1 are:
- the phenyl and the phenoxy group and in addition the 1- and 2-naphthyl group, the 1- and 2-naphthoxy group and the 1- and 2-5, 6, 7, 8-tetrahydronaphthalene group, these groups bearing one or more of the following substituents can:
- Ci - C 12 alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, sec-pentyl, tert-pentyl, neopentyl, hexyl, methyl pentyl, heptyl, octyl, 2 -Ethylhexy, nonyl, decyl, dodecyl, the corresponding Ci - C 12 alkoxy groups, hydroxy, amino, methylamino, ethylamino, propylamino, isopropylamino, butylamino, dimethylamino, diethylamino, dipropylamino, diisopropylamino and dibutylamino, with the aromatic rings also different radicals can be substituted and the total number of carbon atoms in the aryl and aryloxy
- Ci - C 20 alkoxy groups such as methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tert. -Butoxy, pentoxy, sec. -Pentoxy, tert. Pentoxy, neopentoxy, hexoxy, methyl pentoxy, heptoxy, octoxy, 2-ethylhexoxy, nonoxy, decoxy or dodecoxy;
- Suitable substituents R 3 in the radicals -COOR 3 are branched and unbranched alkyl groups, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, tert-pentyl , Hexyl, 2-methylpentyl, heptyl, octyl, 2-ethylhexyl, isooctyl, nonyl, isononyl, decyl, undecyl, isoundecyl, dodecyl, tridecyl, isotridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl,
- R 3 radicals are alkyl radicals in which carbon atoms are replaced by oxygen atoms in ether function.
- Preferred are residues derived from ethylene glycol or propylene glycol.
- radicals R 2 are alkyl radicals which are interrupted by oxygen atoms in ether function, sulfur atoms in thioether function or non-adjacent imino, methylimino, ethylimino, propyliinino or butylimino groups.
- radicals - (CH 2 CH 2 0) 3 -CH 2 -CH 3 , - (CH 2 CH 2 0) 4 -CH 2 -CH 3 , - (CH 2 CH 2 0) 5 - are particularly preferred.
- R 2 represents a radical of the formula CH 2 CH 2 SR 4 , where R 4 is a C 1 -C 30 -alkyl radical, the carbon of which chain can be interrupted by oxygen atoms in ether function or by non-adjacent imino or C ⁇ -C 4 alkylimino groups.
- the radicals R 4 are especially the radicals mentioned for R 2 . Chroman derivatives with such side chains are known for example from DE-A 4405670.
- Further preferred radicals R 2 are substituted benzyl radicals and among them particularly hydroxy-substituted benzyl radicals of the general formula
- R 5 and R 6 Ci-C ⁇ -alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, sec-pentyl, tert. -Pentyl, neopentyl, hexyl, methylpentyl, heptyl, octyl or 2-ethylhexyl, with tert-butyl being particularly preferred.
- Residues R 2 with this structure contribute to the stabilizing effect of the chroman system.
- the compounds according to the invention can be derived from the 5-methylchromane derivatives II
- the 5-methyl radical can be selectively brominated with bromine, for example in hexane solution.
- the 5-bromomethylchromane derivative can then either with phenols of the formula R 1 -H, where R 1 denotes an aryloxy group, to the corresponding phenoxy-substituted chroman derivatives or with alkali metal alcoholates, in particular with Na or K alcoholates to the corresponding alkoxy compounds be implemented.
- the aryl derivatives, including the hydroxy-substituted aryl derivatives can be prepared by Friedel-Crafts alkylation of the aryl compounds with the 5-bromomethyl-chroman derivative. This reaction is preferably carried out in hexane using ZnCl 2 as a catalyst.
- the corresponding nitriles can be obtained from the 5-bromomethylchromane derivatives by reaction with alkali metal cyanides, for example sodium cyanide.
- alkali metal cyanides for example sodium cyanide.
- a reaction in aprotic solvents such as dimethyl sulfoxide (DMSO) at temperature is advantageous. temperatures below 60 ° C.
- DMSO dimethyl sulfoxide
- the reaction is also successful in protic solvent mixtures such as acetone / ethanol / water in a volume ratio of 3: 1: 1.
- the carboxyl compounds, esters and carboxamides can be prepared from the 5-cyanomethylchromane derivatives. Saponification of the nitrile to form the carboxyl compound succeeds e.g. in aqueous dioxane with an acidic catalyst such as p-toluenesulfonic acid or particularly advantageously gaseous HBr or very particularly HCl.
- an acidic catalyst such as p-toluenesulfonic acid or particularly advantageously gaseous HBr or very particularly HCl.
- the carboxamide can be obtained in concentrated formic acid with dry hydrogen bromide.
- the reaction can also be carried out under other customary conditions, e.g. by basic hydrolysis with exclusion of oxygen.
- the esters can also be obtained from the 5-cyanomethylchromane derivatives by reaction with an alcohol R 3 OH.
- the reaction in alcohol R 3 OH itself is preferably carried out as a solvent or in an aprotic solvent such as n-hexane or diethyl ether in the presence of dry hydrogen bromide. It is then hydrolyzed in aqueous medium to give the corresponding ester.
- the radical R 2 insofar as it is not a component of the natural ⁇ -tocopherol like the phytyl radical, is preferably not introduced into the finished chroman system, but rather is introduced into the molecule when the chromium system is built up.
- Such chroman derivatives are produced, for example, from phenols and allyl alcohols, the radical R 2 being part of the allyl alcohol.
- the trimethylhydroquinone and the corresponding allyl alcohol are converted to the compound II according to the following reaction scheme:
- chroman syntheses are, for example, in JW Schott et al., Helv. Chim. Acta .59., 290 (1976) and P. Schudel et al. in "The Vitamins,” ed. WH Sebrell, Jr. & RS Harris, Acad. Press, New York 1972, Vol.V, pp. 168-218.
- the chroman compounds according to the invention are suitable for stabilizing organic material against the action of light, oxygen and heat.
- plastics of all kinds are of particular importance, e.g.
- Polymers of mono- and diolefins e.g. Low or high density polyethylene, polypropylene, polybut-1-ene, polyisoprene, polybutadiene and copolymers of mono- or diolefins and mixtures of the polymers mentioned;
- SAN Styrene-acrylonitrile
- ABS acrylonitrile-butadiene-styrene
- MBS methyl methacrylate-butadiene-styrene
- halogen-containing polymers such as polyvinyl chloride, polyvinyl fluoride, polyvinylidene fluoride and copolymers of haloalkenes
- Derive derivatives such as polyacrylates, polymethacrylates, polyacrylamides and polyacrylonitrile;
- Polyurethanes polyamides, polyureas, polyphenylene ethers, polyesters, polycarbonates, polysulfones, polyether sulfones and polyether ketones.
- Suitable plastics which can be stabilized particularly well with the stabilizers according to the invention are, in particular, thermoplastics such as polyvinyl chloride, styrene polymers, polyamides, polycarbonates, polyphenylene oxide, polyesters, polyolefins, preferably polyethylene and polypropylene and polyurethanes. Because of their heat resistance and their low volatility, the chroman derivatives according to the invention are particularly suitable for stabilizing all kinds of thermoplastics during processing in extruders. In addition, the chromium derivatives according to the invention are also suitable for stabilizing thermosets. Fats, oils and lacquers can also be stabilized with the compounds according to the invention.
- thermoplastics such as polyvinyl chloride, styrene polymers, polyamides, polycarbonates, polyphenylene oxide, polyesters, polyolefins, preferably polyethylene and polypropylene and polyurethanes. Because of their heat resistance and their low volatility, the chroman derivatives according to the invention
- compositions such as tablets and suppositories and photographic recording materials, in particular photographic emulsions, can also be stabilized with the compounds according to the invention.
- the stabilizing effect of the chroman derivatives according to the invention can be increased further by using other stabilizers.
- Particularly suitable costabilizers are e.g. organic phosphites of the general formula III
- radicals R 7 to R 9 are C 2 -C 2 alkyl or C 6 -C 8 aryl groups, which may be substituted by C 1 -C 6 -alkyl groups.
- R 7 to R 9 are, for example, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, sec-pentyl, tert. -Pentyl, neopentyl, hexyl, heptyl, octyl, nonyl, isononyl, decyl, isodecyl or dodecyl, with the Cs-Cio-alkyl radicals being particularly preferred.
- aryl groups include phenyl and phenyl substituted with one, two or three C 4 -C 2 alkyl groups, very particularly nonylphenyl and 2,4-di-tert. - butylphenyl.
- Suitable costabilizers are furthermore organic phosphonites and among them particularly preferably the compound known as stabilizer (see, for example, DE-Al 3634531) of the formula IV
- Mixtures of the compounds III and IV also advantageously increase the stabilizing effect of the chromium derivatives according to the invention.
- radicals R 10 to R 12 have the following meaning:
- Ci-Cis-alkyl which by up to 5 oxygen atoms in ether function or non-neighboring imino, methylimino, ethyl imino, propylimino, isopropylimino, butylimino or tert.
- -Butyl- imino groups can be interrupted and can be substituted by up to three hydroxy groups or phenyl, which can be substituted by up to 3 C 4 -C 8 alkyl groups, where
- Ammonia as compound V is excluded.
- Preferred amines are, for example, butylamine, dibutylamine, tributylamine, tri-propylamine, triisopropylamine, octylamine, diisobutylamine, stearylamine and amines containing hydroxyl groups, for example ethanolamine, diethanolamine, triethanolamine, propanolamine, dipropanolamine, tripropanolamine, isopropanolamine and diisopropanolamine, especially diisopropanolamine.
- the components are contained in the following proportions in stabilizer mixtures consisting of the chroman derivatives I and optionally the stabilizer compounds III, IV and V:
- Compounds I 5-90% by weight, preferably 10-50% by weight, particularly preferably 20-25% by weight, compounds III and / or IV: 10-95% by weight, preferably 50-90% by weight %, particularly preferably 75-80% by weight, compounds V: 0.01 to 2% by weight, preferably 0.02-1% by weight, particularly preferably 0.03-0.5% by weight, based in each case on the total amount of the stabilizer mixture.
- the stabilizers of the formula I or the above-mentioned stabilizer mixtures are preferably added to the organic material to be stabilized in a concentration of 0.05 to 5% by weight, in particular 0.01 to 2% by weight, particularly preferably of 0.05 to 1% by weight, based on the amount of organic material, was added before, during or after its preparation.
- This compound was prepared analogously to Example 2 from 5a-bromo- ⁇ -tocopherol and sodium isopropanolate.
- This compound was prepared analogously to Example 2 from 5a-bromo- ⁇ -tocopherol and sodium hexanolate.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Pyrane Compounds (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU66132/96A AU6613296A (en) | 1995-07-20 | 1996-07-10 | Chroman derivatives, their preparation and their use as stabilizers of organic material against light, oxygen and heat |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995126471 DE19526471A1 (de) | 1995-07-20 | 1995-07-20 | Chromanderivate |
DE19526471.1 | 1995-07-20 | ||
DE19542852.8 | 1995-11-17 | ||
DE1995142852 DE19542852A1 (de) | 1995-11-17 | 1995-11-17 | Chromanderivate |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997003974A2 true WO1997003974A2 (de) | 1997-02-06 |
WO1997003974A3 WO1997003974A3 (de) | 1997-03-06 |
Family
ID=26016981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/003008 WO1997003974A2 (de) | 1995-07-20 | 1996-07-10 | Chromanderivate, deren herstellung und deren verwendung als stabilisatoren von organischen material gegenüber licht, sauerstoff un wärme |
Country Status (2)
Country | Link |
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AU (1) | AU6613296A (de) |
WO (1) | WO1997003974A2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6566390B2 (en) | 2000-08-09 | 2003-05-20 | Aventis Pharma Deutschland Gmbh | Substituted and unsubstituted benzooxathiazoles and compounds derived therefrom |
WO2016135228A1 (en) | 2015-02-25 | 2016-09-01 | P.B. Clermont | Tocopherol stabilisers for nitrocellulose-based propellants |
US11267951B2 (en) | 2010-12-13 | 2022-03-08 | Cytec Technology Corp. | Stabilizer compositions containing substituted chroman compounds and methods of use |
US11312043B2 (en) | 2010-12-13 | 2022-04-26 | Cytec Technology Corp. | Processing additives and uses of same in rotational molding |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3476777A (en) * | 1965-10-27 | 1969-11-04 | Yamanouchi Pharma Co Ltd | Novel 6-chromanol derivatives and their preparation |
EP0036169A1 (de) * | 1980-03-19 | 1981-09-23 | BASF Aktiengesellschaft | Chromanderivate, Verfahren zu ihrer Herstellung, ihre Verwendung als Stabilisatoren von organischen Materialien sowie diese Stabilisatoren enthaltende organische Materialien |
EP0113042A2 (de) * | 1982-11-26 | 1984-07-11 | Kuraray Co., Ltd. | 3,4-Dihydro-2H-benzopyran-Derivate, Verfahren zu deren Herstellung, Verfahren zu deren Verwendung als Stabilisator für organische Stoffe und diese Stabilisatoren enthaltende organische Zusammensetzungen |
EP0263524A2 (de) * | 1986-10-10 | 1988-04-13 | BASF Aktiengesellschaft | Stabilisatorgemische für Kunststoffe |
WO1995023182A1 (de) * | 1994-02-23 | 1995-08-31 | Basf Aktiengesellschaft | Stabilisatorgemisch aus chromanderivaten, organischen phosphiten oder phosphoniten und aminen |
-
1996
- 1996-07-10 WO PCT/EP1996/003008 patent/WO1997003974A2/de active Application Filing
- 1996-07-10 AU AU66132/96A patent/AU6613296A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3476777A (en) * | 1965-10-27 | 1969-11-04 | Yamanouchi Pharma Co Ltd | Novel 6-chromanol derivatives and their preparation |
EP0036169A1 (de) * | 1980-03-19 | 1981-09-23 | BASF Aktiengesellschaft | Chromanderivate, Verfahren zu ihrer Herstellung, ihre Verwendung als Stabilisatoren von organischen Materialien sowie diese Stabilisatoren enthaltende organische Materialien |
EP0113042A2 (de) * | 1982-11-26 | 1984-07-11 | Kuraray Co., Ltd. | 3,4-Dihydro-2H-benzopyran-Derivate, Verfahren zu deren Herstellung, Verfahren zu deren Verwendung als Stabilisator für organische Stoffe und diese Stabilisatoren enthaltende organische Zusammensetzungen |
EP0263524A2 (de) * | 1986-10-10 | 1988-04-13 | BASF Aktiengesellschaft | Stabilisatorgemische für Kunststoffe |
WO1995023182A1 (de) * | 1994-02-23 | 1995-08-31 | Basf Aktiengesellschaft | Stabilisatorgemisch aus chromanderivaten, organischen phosphiten oder phosphoniten und aminen |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6566390B2 (en) | 2000-08-09 | 2003-05-20 | Aventis Pharma Deutschland Gmbh | Substituted and unsubstituted benzooxathiazoles and compounds derived therefrom |
US7211592B2 (en) | 2000-08-09 | 2007-05-01 | Sanofi-Aventis Deutschland Gmbh | Substituted an unsubstituted benzooxathiazoles and compounds derived therefrom |
US11267951B2 (en) | 2010-12-13 | 2022-03-08 | Cytec Technology Corp. | Stabilizer compositions containing substituted chroman compounds and methods of use |
US11312043B2 (en) | 2010-12-13 | 2022-04-26 | Cytec Technology Corp. | Processing additives and uses of same in rotational molding |
WO2016135228A1 (en) | 2015-02-25 | 2016-09-01 | P.B. Clermont | Tocopherol stabilisers for nitrocellulose-based propellants |
US10414697B2 (en) | 2015-02-25 | 2019-09-17 | Pb Clermont | Tocopherol stabilisers for nitrocellulose-based propellants |
Also Published As
Publication number | Publication date |
---|---|
WO1997003974A3 (de) | 1997-03-06 |
AU6613296A (en) | 1997-02-18 |
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