CH618423A5 - - Google Patents

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Info

Publication number: CH618423A5
Authority: CH; Switzerland
Prior art keywords: general formula; carbon atoms; sulfone; straight; equal
Prior art date: 1976-02-25

Application number

CH232377A

Other languages

English (en)

French (fr)

Inventor

Jean-Pierre Decor

Original Assignee

Rhone Poulenc Ind

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1976-02-25

Filing date

1977-02-24

Publication date

1980-07-31

1977-02-24 Application filed by Rhone Poulenc Ind filed Critical Rhone Poulenc Ind

1980-07-31 Publication of CH618423A5 publication Critical patent/CH618423A5/fr

Links

238000000034 method Methods 0.000 claims description 13
150000001299 aldehydes Chemical class 0.000 claims description 11
238000006243 chemical reaction Methods 0.000 claims description 11
150000003457 sulfones Chemical class 0.000 claims description 11
125000004432 carbon atom Chemical group C* 0.000 claims description 9
239000003795 chemical substances by application Substances 0.000 claims description 9
238000002360 preparation method Methods 0.000 claims description 9
125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
125000005843 halogen group Chemical group 0.000 claims description 4
HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 claims description 3
239000003880 polar aprotic solvent Substances 0.000 claims description 3
125000004414 alkyl thio group Chemical group 0.000 claims description 2
125000003710 aryl alkyl group Chemical group 0.000 claims description 2
125000003118 aryl group Chemical group 0.000 claims description 2
230000000694 effects Effects 0.000 claims description 2
125000003545 alkoxy group Chemical group 0.000 claims 1
125000004448 alkyl carbonyl group Chemical group 0.000 claims 1
125000000217 alkyl group Chemical group 0.000 claims 1
TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 claims 1
239000000047 product Substances 0.000 description 22
-1 alkyl radical Chemical class 0.000 description 19
OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 8
239000000243 solution Substances 0.000 description 8
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
239000002994 raw material Substances 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
239000007864 aqueous solution Substances 0.000 description 3
239000003153 chemical reaction reagent Substances 0.000 description 3
QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 3
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
239000011541 reaction mixture Substances 0.000 description 3
229920006395 saturated elastomer Polymers 0.000 description 3
229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
235000017557 sodium bicarbonate Nutrition 0.000 description 3
BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical compound CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 2
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Natural products CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
239000002253 acid Substances 0.000 description 2
150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
239000008346 aqueous phase Substances 0.000 description 2
150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
238000006705 deacetalization reaction Methods 0.000 description 2
229910052500 inorganic mineral Inorganic materials 0.000 description 2
WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 2
239000011707 mineral Substances 0.000 description 2
235000010755 mineral Nutrition 0.000 description 2
239000000203 mixture Substances 0.000 description 2
HWYHDWGGACRVEH-UHFFFAOYSA-N n-methyl-n-(4-pyrrolidin-1-ylbut-2-ynyl)acetamide Chemical compound CC(=O)N(C)CC#CCN1CCCC1 HWYHDWGGACRVEH-UHFFFAOYSA-N 0.000 description 2
239000012074 organic phase Substances 0.000 description 2
125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
IODUDVQDMKBOJC-UHFFFAOYSA-N tert-butyl hypobromite Chemical compound CC(C)(C)OBr IODUDVQDMKBOJC-UHFFFAOYSA-N 0.000 description 2
FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
DONSTYDPUORSDN-UHFFFAOYSA-N 2,6-dimethylhepta-1,5-diene Chemical compound CC(C)=CCCC(C)=C DONSTYDPUORSDN-UHFFFAOYSA-N 0.000 description 1
KOLLQDFGVSXTIN-UHFFFAOYSA-N 2-bromo-1,1,3-trimethoxy-3-methylbutane Chemical compound COC(OC)C(Br)C(C)(C)OC KOLLQDFGVSXTIN-UHFFFAOYSA-N 0.000 description 1
YIJKAFLBFJLEEH-UHFFFAOYSA-N 3-bromo-4,4-dimethoxy-2-methylbut-1-ene Chemical compound COC(OC)C(Br)C(C)=C YIJKAFLBFJLEEH-UHFFFAOYSA-N 0.000 description 1
SEPQTYODOKLVSB-UHFFFAOYSA-N 3-methylbut-2-enal Chemical compound CC(C)=CC=O SEPQTYODOKLVSB-UHFFFAOYSA-N 0.000 description 1
ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
238000006359 acetalization reaction Methods 0.000 description 1
150000001241 acetals Chemical class 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
229910000102 alkali metal hydride Inorganic materials 0.000 description 1
150000008046 alkali metal hydrides Chemical class 0.000 description 1
150000001340 alkali metals Chemical class 0.000 description 1
125000004453 alkoxycarbonyl group Chemical group 0.000 description 1
FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
150000001408 amides Chemical class 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
239000012300 argon atmosphere Substances 0.000 description 1
239000012298 atmosphere Substances 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
BBBFJLBPOGFECG-VJVYQDLKSA-N calcitonin Chemical compound N([C@H](C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC=1NC=NC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC=1C=CC(O)=CC=1)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(=O)NCC(=O)N[C@@H](CO)C(=O)NCC(=O)N[C@@H]([C@@H](C)O)C(=O)N1[C@@H](CCC1)C(N)=O)C(C)C)C(=O)[C@@H]1CSSC[C@H](N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CO)C(=O)N[C@@H]([C@@H](C)O)C(=O)N1 BBBFJLBPOGFECG-VJVYQDLKSA-N 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000001816 cooling Methods 0.000 description 1
239000012043 crude product Substances 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
230000006326 desulfonation Effects 0.000 description 1
238000005869 desulfonation reaction Methods 0.000 description 1
238000004821 distillation Methods 0.000 description 1
238000001914 filtration Methods 0.000 description 1
GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
150000002484 inorganic compounds Chemical class 0.000 description 1
239000007788 liquid Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000000463 material Substances 0.000 description 1
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
229910052753 mercury Inorganic materials 0.000 description 1
238000006386 neutralization reaction Methods 0.000 description 1
150000002894 organic compounds Chemical class 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
150000002901 organomagnesium compounds Chemical class 0.000 description 1
150000002902 organometallic compounds Chemical class 0.000 description 1
239000002243 precursor Substances 0.000 description 1
150000003138 primary alcohols Chemical class 0.000 description 1
150000003254 radicals Chemical class 0.000 description 1
239000012429 reaction media Substances 0.000 description 1
230000009257 reactivity Effects 0.000 description 1
229930004725 sesquiterpene Natural products 0.000 description 1
150000004354 sesquiterpene derivatives Chemical class 0.000 description 1
238000003756 stirring Methods 0.000 description 1
238000003786 synthesis reaction Methods 0.000 description 1
150000003505 terpenes Chemical class 0.000 description 1
235000007586 terpenes Nutrition 0.000 description 1
230000009466 transformation Effects 0.000 description 1
235000019155 vitamin A Nutrition 0.000 description 1
239000011719 vitamin A Substances 0.000 description 1
229940045997 vitamin a Drugs 0.000 description 1
238000005303 weighing Methods 0.000 description 1
239000008096 xylene Substances 0.000 description 1
150000003738 xylenes Chemical class 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/48—Preparation of compounds having groups
- C07C41/50—Preparation of compounds having groups by reactions producing groups
- C07C41/56—Preparation of compounds having groups by reactions producing groups by condensation of aldehydes, paraformaldehyde, or ketones
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
- C07C403/22—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by sulfur atoms
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

CH232377A 1976-02-25 1977-02-24 CH618423A5 (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7605244A FR2342282A1 (fr)	1976-02-25	1976-02-25	Procede de preparation de sulfones acetals et leur utilisation pour la preparation d'aldehydes ethyleniques

Publications (1)

Publication Number	Publication Date
CH618423A5 true CH618423A5 (nl)	1980-07-31

Family

ID=9169587

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH232377A CH618423A5 (nl)	1976-02-25	1977-02-24

Country Status (13)

Country	Link
US (1)	US4110538A (nl)
JP (1)	JPS52102246A (nl)
BE (1)	BE851782A (nl)
CA (1)	CA1072571A (nl)
CH (1)	CH618423A5 (nl)
DD (1)	DD129109A5 (nl)
DE (1)	DE2708210C2 (nl)
FR (1)	FR2342282A1 (nl)
GB (1)	GB1521015A (nl)
IT (1)	IT1085866B (nl)
NL (1)	NL175817C (nl)
SE (1)	SE422457B (nl)
SU (1)	SU727138A3 (nl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE794872A (fr) *	1972-02-02	1973-08-01	Rhone Poulenc Sa	Nouvelles sulfones derivees de dimethyl-1,5 hexadiene-1,5 ylene
US4883887A (en) *	1987-07-09	1989-11-28	Hoffmann-La Roche Inc.	Sulfone polyene intermediates
US5185468A (en) *	1990-06-14	1993-02-09	Kuraray Company Ltd.	Process for producing β-carotene, and intermediate compounds useful for the process
DE4123994A1 (de) *	1991-07-19	1993-01-21	Basf Ag	Verbessertes verfahren zur herstellung von polyenen
CN103183591B (zh) *	2007-01-31	2016-01-20	Dic株式会社	4′-二烷氧基甲基双环己烷-4-基甲醇及其制造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2122694A5 (nl) *	1971-01-20	1972-09-01	Rhone Poulenc Sa
FR2138212B1 (nl) *	1971-05-19	1973-05-11	Rhone Poulenc Sa
BE794872A (fr) *	1972-02-02	1973-08-01	Rhone Poulenc Sa	Nouvelles sulfones derivees de dimethyl-1,5 hexadiene-1,5 ylene
BE794873A (fr) *	1972-02-02	1973-08-01	Rhone Poulenc Sa	Nouvelles sulfones a enchainement dimethyl-1,6 hexadien-1,5 ylene
BE794943A (fr) *	1972-02-04	1973-08-02	Rhone Poulenc Sa	Nouvelles sulfones methyleniques dans la serie des terpenes
BE794944A (fr) *	1972-02-04	1973-08-02	Rhone Poulenc Sa	Nouvelles sulfones insaturees comportant une fonction carbonyle
US3906967A (en) *	1974-05-08	1975-09-23	Maytag Co	Dishwasher

1976
- 1976-02-25 FR FR7605244A patent/FR2342282A1/fr active Granted
1977
- 1977-02-17 NL NLAANVRAGE7701706,A patent/NL175817C/nl not_active IP Right Cessation
- 1977-02-23 JP JP1824077A patent/JPS52102246A/ja active Granted
- 1977-02-23 US US05/771,815 patent/US4110538A/en not_active Expired - Lifetime
- 1977-02-24 GB GB7897/77A patent/GB1521015A/en not_active Expired
- 1977-02-24 CA CA272,560A patent/CA1072571A/fr not_active Expired
- 1977-02-24 SE SE7702071A patent/SE422457B/xx not_active IP Right Cessation
- 1977-02-24 BE BE175225A patent/BE851782A/xx not_active IP Right Cessation
- 1977-02-24 CH CH232377A patent/CH618423A5/fr not_active IP Right Cessation
- 1977-02-24 DD DD7700197543A patent/DD129109A5/xx unknown
- 1977-02-25 IT IT20719/77A patent/IT1085866B/it active
- 1977-02-25 SU SU772455510A patent/SU727138A3/ru active
- 1977-02-25 DE DE2708210A patent/DE2708210C2/de not_active Expired

Also Published As

Publication number	Publication date
DE2708210A1 (de)	1977-09-01
US4110538A (en)	1978-08-29
DD129109A5 (de)	1977-12-28
CA1072571A (fr)	1980-02-26
NL175817C (nl)	1985-01-02
SU727138A3 (ru)	1980-04-05
BE851782A (fr)	1977-08-24
FR2342282A1 (fr)	1977-09-23
JPS5725033B2 (nl)	1982-05-27
NL175817B (nl)	1984-08-01
GB1521015A (en)	1978-08-09
SE422457B (sv)	1982-03-08
FR2342282B1 (nl)	1979-07-20
JPS52102246A (en)	1977-08-27
IT1085866B (it)	1985-05-28
SE7702071L (sv)	1977-08-26
DE2708210C2 (de)	1984-09-06
NL7701706A (nl)	1977-08-29

Publication	Publication Date	Title
EP0283364B1 (fr)	1991-01-09	Procédé de préparation de monoesters ou diesters de l'acide endoéthano-9,10 dihydro-9,10 anthracène dicarboxylique-11,11, nouveaux monoesters ou diesters ainsi préparés et utilisation de ceux-ci pour la préparation de méthylidène-malonates symétriques ou asymétriques
EP0452182B1 (fr)	1994-08-03	Procédé d'obtention d'au moins une oléfine tertiaire par décomposition de l'éther correspondant
EP0877726B1 (fr)	2001-12-12	Procede d'acylation d'un compose aromatique
CH618423A5 (nl)	1980-07-31
EP0770051A1 (fr)	1997-05-02	Procede d'acylation d'ethers aromatiques
EP0171320B1 (fr)	1987-10-28	Procédé de préparation de composés insaturés chlorés en alpha de deux groupements électroattracteurs en position bêta
EP0152310B1 (fr)	1987-07-22	Procédé de préparation de trifluorométhyl anilines
EP0199661B1 (fr)	1989-05-31	Procédé de préparation d'acylbiphényles
EP1250303A1 (fr)	2002-10-23	Procede de preparation de cetones alpha-halogenees
CA1077952A (fr)	1980-05-20	Procede de preparation d'halogenoacetals a partir d'esters
CH618155A5 (nl)	1980-07-15
CH643226A5 (fr)	1984-05-30	Procede de fabrication de composes carbonyles par oxydation de composes olefiniques.
EP0127536B1 (fr)	1987-01-21	Procédé de préparation de composés carbonyles alpha-delta-diéthyléniques
EP0909268B1 (fr)	2002-06-05	Procede de preparation d'anthraquinones substituees, et application a la preparation de rheines
CH616137A5 (nl)	1980-03-14
EP0270468B1 (fr)	1991-07-24	Procédé de préparation d'un mélange renfermant un cyclohexanol et de la cyclohexanone à partir du cyclohexane
EP0461972B1 (fr)	1994-03-30	Procédé de transformation de N-oxydes d'amines tertiaires en aldéhydes
EP0668850B1 (fr)	1998-12-09	Composes aliphatiques oxygenes et leur utilisation a titre d'intermediaires pour la preparation de 4-hydroxy-2,5-dimethyl-3(2h)-furanone
FR2499986A1 (fr)	1982-08-20	Procede de production du peroxyde de dicumyle
EP0365440B1 (fr)	1993-07-07	Procédé de destruction des péroxydes d'acétone
EP0278845A2 (fr)	1988-08-17	Procédé de préparation d'hydroxybiphenyles
FR2784986A1 (fr)	2000-04-28	Procede de preparation d'un compose de type indanone ou thioindanone
WO2003064363A1 (fr)	2003-08-07	Procede de preparation d'un aldehyde aromatique.
FR2655335A1 (fr)	1991-06-07	Procede de preparation d'acetates d'hydroquinones substituees.
EP0606182A1 (fr)	1994-07-13	Procédé de préparation d'un composé aromatique o-dihydroxylé

Legal Events

Date	Code	Title	Description
2024-10-31	PL	Patent ceased