BE802946A - Procede de fabrication de pyrocatechime - Google Patents
Procede de fabrication de pyrocatechimeInfo
- Publication number
- BE802946A BE802946A BE133993A BE133993A BE802946A BE 802946 A BE802946 A BE 802946A BE 133993 A BE133993 A BE 133993A BE 133993 A BE133993 A BE 133993A BE 802946 A BE802946 A BE 802946A
- Authority
- BE
- Belgium
- Prior art keywords
- pyrocatechime
- manufacturing process
- manufacturing
- pyrocatechime 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 |
|---|---|---|---|
| DE19722237808 DE2237808B1 (de) | 1972-08-01 | 1972-08-01 | Verfahren zur herstellung von brenzcatechin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE802946A true BE802946A (fr) | 1974-01-30 |
Family
ID=5852355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE133993A BE802946A (fr) | 1972-08-01 | 1973-07-30 | Procede de fabrication de pyrocatechime |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4955634A (de) |
| BE (1) | BE802946A (de) |
| BG (1) | BG21012A3 (de) |
| DD (1) | DD106348A5 (de) |
| DE (1) | DE2237808B1 (de) |
| FR (1) | FR2194675A1 (de) |
| NL (1) | NL7310539A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01113324A (ja) * | 1987-10-27 | 1989-05-02 | Nippon Zeon Co Ltd | アルカリ水溶液からのカテコール類の分離方法 |
-
1972
- 1972-08-01 DE DE19722237808 patent/DE2237808B1/de active Granted
-
1973
- 1973-07-24 BG BG2420173A patent/BG21012A3/xx unknown
- 1973-07-30 NL NL7310539A patent/NL7310539A/xx unknown
- 1973-07-30 BE BE133993A patent/BE802946A/xx unknown
- 1973-07-30 JP JP8503673A patent/JPS4955634A/ja active Pending
- 1973-07-31 DD DD16956373A patent/DD106348A5/xx unknown
- 1973-08-01 FR FR7328260A patent/FR2194675A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE2237808B1 (de) | 1973-10-18 |
| JPS4955634A (de) | 1974-05-30 |
| DE2237808A1 (de) | 1973-10-18 |
| NL7310539A (de) | 1974-02-05 |
| FR2194675A1 (en) | 1974-03-01 |
| DD106348A5 (de) | 1974-06-12 |
| DE2237808C2 (de) | 1974-05-16 |
| BG21012A3 (de) | 1976-01-20 |
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