AT308721B - Verfahren zur Herstellung von Brenzkatechin - Google Patents
Verfahren zur Herstellung von BrenzkatechinInfo
- Publication number
- AT308721B AT308721B AT347771A AT347771A AT308721B AT 308721 B AT308721 B AT 308721B AT 347771 A AT347771 A AT 347771A AT 347771 A AT347771 A AT 347771A AT 308721 B AT308721 B AT 308721B
- Authority
- AT
- Austria
- Prior art keywords
- catechol
- production
- Prior art date
Links
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 title 2
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS271870 | 1970-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT308721B true AT308721B (de) | 1973-07-25 |
Family
ID=5365062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT347771A AT308721B (de) | 1970-04-22 | 1971-04-22 | Verfahren zur Herstellung von Brenzkatechin |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT308721B (OSRAM) |
| BE (1) | BE765949A (OSRAM) |
| CH (1) | CH564499A5 (OSRAM) |
| DE (1) | DE2119676A1 (OSRAM) |
| ES (1) | ES390333A1 (OSRAM) |
| FR (1) | FR2089964A5 (OSRAM) |
| GB (1) | GB1344095A (OSRAM) |
| NL (1) | NL7105311A (OSRAM) |
-
1971
- 1971-04-19 GB GB996071A patent/GB1344095A/en not_active Expired
- 1971-04-19 ES ES390333A patent/ES390333A1/es not_active Expired
- 1971-04-19 BE BE765949A patent/BE765949A/xx unknown
- 1971-04-20 NL NL7105311A patent/NL7105311A/xx unknown
- 1971-04-21 CH CH583071A patent/CH564499A5/xx not_active IP Right Cessation
- 1971-04-21 FR FR7114073A patent/FR2089964A5/fr not_active Expired
- 1971-04-22 DE DE19712119676 patent/DE2119676A1/de active Pending
- 1971-04-22 AT AT347771A patent/AT308721B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2089964A5 (OSRAM) | 1972-01-07 |
| BE765949A (fr) | 1971-09-16 |
| CH564499A5 (OSRAM) | 1975-07-31 |
| DE2119676A1 (de) | 1971-11-04 |
| GB1344095A (en) | 1974-01-16 |
| NL7105311A (OSRAM) | 1971-10-26 |
| ES390333A1 (es) | 1973-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |