BE802944A - Procede de fabrication de pyrocatechine - Google Patents
Procede de fabrication de pyrocatechineInfo
- Publication number
- BE802944A BE802944A BE133991A BE133991A BE802944A BE 802944 A BE802944 A BE 802944A BE 133991 A BE133991 A BE 133991A BE 133991 A BE133991 A BE 133991A BE 802944 A BE802944 A BE 802944A
- Authority
- BE
- Belgium
- Prior art keywords
- pyrocatechin
- manufacturing process
- manufacturing
- pyrocatechin manufacturing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/02—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of halogen
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2237750A DE2237750C2 (de) | 1972-08-01 | 1972-08-01 | Verfahren zur Herstellung von Brenzcatechin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE802944A true BE802944A (fr) | 1974-01-30 |
Family
ID=5852321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE133991A BE802944A (fr) | 1972-08-01 | 1973-07-30 | Procede de fabrication de pyrocatechine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3919334A (fr) |
| JP (1) | JPS504032A (fr) |
| BE (1) | BE802944A (fr) |
| DD (1) | DD106349A5 (fr) |
| DE (1) | DE2237750C2 (fr) |
| FR (1) | FR2194674A1 (fr) |
| GB (1) | GB1414535A (fr) |
| NL (1) | NL7310540A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583228B2 (ja) * | 1972-10-02 | 1983-01-20 | 株式会社リコー | デンシシヤシンフクシヤキ ニ オケル ジキゲンゾウブラシ |
| JP2000212330A (ja) | 1999-01-26 | 2000-08-02 | Nippon Zeon Co Ltd | 加硫性ゴム組成物 |
| CN102911018B (zh) * | 2011-08-04 | 2015-05-20 | 浙江龙盛化工研究有限公司 | 一种从间苯二胺酸性水解液中分离含酚有机物的方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2041592A (en) * | 1934-10-11 | 1936-05-19 | Pennsylvania Coal Products Com | Process of hydrolyzing chlor phenols |
| US3536767A (en) * | 1967-04-06 | 1970-10-27 | Dow Chemical Co | Manufacture of pyrocatechol |
-
1972
- 1972-08-01 DE DE2237750A patent/DE2237750C2/de not_active Expired
-
1973
- 1973-07-24 US US382233A patent/US3919334A/en not_active Expired - Lifetime
- 1973-07-30 JP JP48085035A patent/JPS504032A/ja active Pending
- 1973-07-30 NL NL7310540A patent/NL7310540A/xx unknown
- 1973-07-30 BE BE133991A patent/BE802944A/fr unknown
- 1973-07-31 DD DD168122A patent/DD106349A5/xx unknown
- 1973-08-01 GB GB3653773A patent/GB1414535A/en not_active Expired
- 1973-08-01 FR FR7328258A patent/FR2194674A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB1414535A (en) | 1975-11-19 |
| US3919334A (en) | 1975-11-11 |
| NL7310540A (fr) | 1974-02-05 |
| DD106349A5 (fr) | 1974-06-12 |
| DE2237750B1 (de) | 1973-10-25 |
| JPS504032A (fr) | 1975-01-16 |
| DE2237750C2 (de) | 1974-06-12 |
| DE2237750A1 (fr) | 1973-10-25 |
| FR2194674A1 (fr) | 1974-03-01 |
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