BE569076A - - Google Patents
Info
- Publication number
- BE569076A BE569076A BE569076DA BE569076A BE 569076 A BE569076 A BE 569076A BE 569076D A BE569076D A BE 569076DA BE 569076 A BE569076 A BE 569076A
- Authority
- BE
- Belgium
- Prior art keywords
- carbon atoms
- substituted
- hydrazine
- acid
- salts
- Prior art date
Links
- -1 N, N'-disubstituted carbodiimide Chemical class 0.000 claims description 34
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 25
- 239000002253 acid Substances 0.000 claims description 23
- 150000003839 salts Chemical class 0.000 claims description 21
- 125000004432 carbon atom Chemical group C* 0.000 claims description 20
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 claims description 16
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 11
- 150000002429 hydrazines Chemical class 0.000 claims description 10
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims description 9
- 229920006395 saturated elastomer Polymers 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 150000007857 hydrazones Chemical class 0.000 claims description 7
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 6
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
- 150000001728 carbonyl compounds Chemical class 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- 125000004414 alkyl thio group Chemical group 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- WFVKIANRKSZMGB-UHFFFAOYSA-N 2,2-diethoxyacetic acid Chemical compound CCOC(C(O)=O)OCC WFVKIANRKSZMGB-UHFFFAOYSA-N 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 3
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- HBVCWULVLHFKDW-UHFFFAOYSA-N 2-hydroxy-N'-propan-2-ylacetohydrazide Chemical compound OCC(=O)NNC(C)C HBVCWULVLHFKDW-UHFFFAOYSA-N 0.000 claims description 2
- FHSXSLRTOCYJMU-UHFFFAOYSA-N N'-benzyl-2-hydroxyacetohydrazide Chemical compound OCC(=O)NNCC1=CC=CC=C1 FHSXSLRTOCYJMU-UHFFFAOYSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 239000000935 antidepressant agent Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000009903 catalytic hydrogenation reaction Methods 0.000 claims description 2
- KJAQRHMKLVGSCG-UHFFFAOYSA-N propan-2-ylhydrazine Chemical compound CC(C)NN KJAQRHMKLVGSCG-UHFFFAOYSA-N 0.000 claims description 2
- 150000003254 radicals Chemical class 0.000 claims 4
- 239000004215 Carbon black (E152) Substances 0.000 claims 2
- 229930195733 hydrocarbon Natural products 0.000 claims 2
- RXPVKJMDMZDEHO-UHFFFAOYSA-N 2,2-diethoxy-n'-propan-2-ylacetohydrazide Chemical compound CCOC(OCC)C(=O)NNC(C)C RXPVKJMDMZDEHO-UHFFFAOYSA-N 0.000 claims 1
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical group [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- 229960004275 glycolic acid Drugs 0.000 claims 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- 235000002639 sodium chloride Nutrition 0.000 description 13
- 239000003054 catalyst Substances 0.000 description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 7
- 238000001953 recrystallisation Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005984 hydrogenation reaction Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-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
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 150000003672 ureas Chemical class 0.000 description 3
- ADFXKUOMJKEIND-UHFFFAOYSA-N 1,3-dicyclohexylurea Chemical compound C1CCCCC1NC(=O)NC1CCCCC1 ADFXKUOMJKEIND-UHFFFAOYSA-N 0.000 description 2
- VWDCSWQCRXYZKN-UHFFFAOYSA-N 2,2-diethoxyacetohydrazide Chemical compound CCOC(OCC)C(=O)NN VWDCSWQCRXYZKN-UHFFFAOYSA-N 0.000 description 2
- QCICYPQPGJJZGW-UHFFFAOYSA-N 2-hydroxypropanehydrazide Chemical compound CC(O)C(=O)NN QCICYPQPGJJZGW-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001718 carbodiimides Chemical class 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- ILULYDJFTJKQAP-UHFFFAOYSA-N hydron;propan-2-ylhydrazine;chloride Chemical compound [Cl-].CC(C)N[NH3+] ILULYDJFTJKQAP-UHFFFAOYSA-N 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229960000964 phenelzine Drugs 0.000 description 2
- DTUQWGWMVIHBKE-UHFFFAOYSA-N phenylacetaldehyde Chemical compound O=CCC1=CC=CC=C1 DTUQWGWMVIHBKE-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- DBGSRZSKGVSXRK-UHFFFAOYSA-N 1-[2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]acetyl]-3,6-dihydro-2H-pyridine-4-carboxylic acid Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CCC(=CC1)C(=O)O DBGSRZSKGVSXRK-UHFFFAOYSA-N 0.000 description 1
- VONXOIVKKBIUPL-UHFFFAOYSA-N 2-ethoxy-N'-propan-2-ylacetohydrazide Chemical compound C(C)OCC(=O)NNC(C)C VONXOIVKKBIUPL-UHFFFAOYSA-N 0.000 description 1
- KNVWSBDCHQBMDN-UHFFFAOYSA-N 2-hydroxy-N-(propan-2-ylideneamino)acetamide Chemical compound OCC(=O)NN=C(C)C KNVWSBDCHQBMDN-UHFFFAOYSA-N 0.000 description 1
- LIUCWHQVLKSECA-UHFFFAOYSA-N 2-hydroxyacetohydrazide Chemical compound NNC(=O)CO LIUCWHQVLKSECA-UHFFFAOYSA-N 0.000 description 1
- XEPXDMNZXBUSOI-UHFFFAOYSA-N 2-methoxyacetohydrazide Chemical compound COCC(=O)NN XEPXDMNZXBUSOI-UHFFFAOYSA-N 0.000 description 1
- ICPWFHKNYYRBSZ-UHFFFAOYSA-M 2-methoxypropanoate Chemical compound COC(C)C([O-])=O ICPWFHKNYYRBSZ-UHFFFAOYSA-M 0.000 description 1
- SBJPKUSFMZKDRZ-UHFFFAOYSA-N 2-methylsulfanylpropanoic acid Chemical compound CSC(C)C(O)=O SBJPKUSFMZKDRZ-UHFFFAOYSA-N 0.000 description 1
- OEGQTIFNQKLTCC-UHFFFAOYSA-N 3-hydroxy-N'-propan-2-ylpropanehydrazide Chemical compound OCCC(=O)NNC(C)C OEGQTIFNQKLTCC-UHFFFAOYSA-N 0.000 description 1
- YYROPELSRYBVMQ-UHFFFAOYSA-N 4-toluenesulfonyl chloride Chemical compound CC1=CC=C(S(Cl)(=O)=O)C=C1 YYROPELSRYBVMQ-UHFFFAOYSA-N 0.000 description 1
- RBYKSKYPGXNGEN-UHFFFAOYSA-N C(C)OCC(=O)NNCC1=CC=CC=C1 Chemical compound C(C)OCC(=O)NNCC1=CC=CC=C1 RBYKSKYPGXNGEN-UHFFFAOYSA-N 0.000 description 1
- CMNALDRCEYZGMU-UHFFFAOYSA-N COCC(=O)NNC(C)C Chemical compound COCC(=O)NNC(C)C CMNALDRCEYZGMU-UHFFFAOYSA-N 0.000 description 1
- HNUALPPJLMYHDK-UHFFFAOYSA-N C[CH]C Chemical group C[CH]C HNUALPPJLMYHDK-UHFFFAOYSA-N 0.000 description 1
- 206010006895 Cachexia Diseases 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 1
- 208000021017 Weight Gain Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 230000001430 anti-depressive effect Effects 0.000 description 1
- 229940005513 antidepressants Drugs 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 125000002668 chloroacetyl group Chemical group ClCC(=O)* 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- WZHCOOQXZCIUNC-UHFFFAOYSA-N cyclandelate Chemical compound C1C(C)(C)CC(C)CC1OC(=O)C(O)C1=CC=CC=C1 WZHCOOQXZCIUNC-UHFFFAOYSA-N 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XCLBIKIQSCTANZ-UHFFFAOYSA-N ethyl 2,2-diethoxyacetate Chemical compound CCOC(OCC)C(=O)OCC XCLBIKIQSCTANZ-UHFFFAOYSA-N 0.000 description 1
- BHXIWUJLHYHGSJ-UHFFFAOYSA-N ethyl 3-ethoxypropanoate Chemical compound CCOCCC(=O)OCC BHXIWUJLHYHGSJ-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 125000000350 glycoloyl group Chemical group O=C([*])C([H])([H])O[H] 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Chemical class 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- RMIODHQZRUFFFF-UHFFFAOYSA-N methoxyacetic acid Chemical compound COCC(O)=O RMIODHQZRUFFFF-UHFFFAOYSA-N 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229940100595 phenylacetaldehyde Drugs 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE569076A true BE569076A (fi) |
Family
ID=188172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE569076D BE569076A (fi) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE569076A (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1098002B (de) * | 1959-04-22 | 1961-01-26 | Basf Ag | Verfahren zur Herstellung von Carbonsaeurehydraziden |
-
0
- BE BE569076D patent/BE569076A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1098002B (de) * | 1959-04-22 | 1961-01-26 | Basf Ag | Verfahren zur Herstellung von Carbonsaeurehydraziden |
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