CH576954A5 - - Google Patents
Info
- Publication number
- CH576954A5 CH576954A5 CH1707772A CH1707772A CH576954A5 CH 576954 A5 CH576954 A5 CH 576954A5 CH 1707772 A CH1707772 A CH 1707772A CH 1707772 A CH1707772 A CH 1707772A CH 576954 A5 CH576954 A5 CH 576954A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5583871A GB1381730A (en) | 1971-12-01 | 1971-12-01 | Process for the industrial manufacture of dinitrostilbene disulphonic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH576954A5 true CH576954A5 (en) | 1976-06-30 |
Family
ID=10475023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1707772A CH576954A5 (en) | 1971-12-01 | 1972-11-23 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS4875553A (en) |
| BE (1) | BE792103A (en) |
| BR (1) | BR7208423D0 (en) |
| CA (1) | CA983026A (en) |
| CH (1) | CH576954A5 (en) |
| DE (1) | DE2258530A1 (en) |
| ES (1) | ES409127A1 (en) |
| FR (1) | FR2164182A5 (en) |
| GB (1) | GB1381730A (en) |
| IT (1) | IT973782B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2916912A1 (en) * | 1979-04-26 | 1980-11-06 | Bayer Ag | METHOD FOR PRODUCING 4-NITROTOLUOL-2-SULPHONIC ACID |
| ATE3974T1 (en) * | 1979-06-08 | 1983-07-15 | Ciba-Geigy Ag | PROCESS FOR THE PREPARATION OF 4,4'-DINITROSTILBENE-2,2'-DISULPHONIC ACID AND THEIR SALTS AND THEIR USE. |
| DE3519552A1 (en) * | 1985-05-31 | 1986-12-04 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING 4,4'-DINITROSTILBEN-2,2'-DISULPHONIC ACID SALTS |
| ES2015100B3 (en) * | 1987-08-12 | 1990-08-01 | Ciba-Geigy Ag | ACID PRODUCTION PROCESS 4,4'- DINITROSTILBENO 2,2'DISULFON |
| DE4330377A1 (en) * | 1993-09-08 | 1995-03-09 | Bayer Ag | Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid |
| CN106146357B (en) * | 2015-04-14 | 2017-12-26 | 上海合丽亚日化技术有限公司 | A kind of preparation method of DSD acid |
| CN107417581A (en) * | 2017-08-15 | 2017-12-01 | 连云港莱亚化学有限公司 | A kind of method of aqueous phase pressurization synthesis DSD acid oxidation intermediates |
-
0
- BE BE792103D patent/BE792103A/en unknown
-
1971
- 1971-12-01 GB GB5583871A patent/GB1381730A/en not_active Expired
-
1972
- 1972-11-22 JP JP47116713A patent/JPS4875553A/ja active Pending
- 1972-11-23 CH CH1707772A patent/CH576954A5/xx not_active IP Right Cessation
- 1972-11-27 CA CA157,523A patent/CA983026A/en not_active Expired
- 1972-11-28 FR FR7242281A patent/FR2164182A5/fr not_active Expired
- 1972-11-29 IT IT5434872A patent/IT973782B/en active
- 1972-11-29 DE DE19722258530 patent/DE2258530A1/en active Pending
- 1972-11-30 BR BR842372A patent/BR7208423D0/en unknown
- 1972-11-30 ES ES409127A patent/ES409127A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1381730A (en) | 1975-01-29 |
| BR7208423D0 (en) | 1973-08-23 |
| IT973782B (en) | 1974-06-10 |
| BE792103A (en) | 1973-05-30 |
| CA983026A (en) | 1976-02-03 |
| ES409127A1 (en) | 1975-11-16 |
| DE2258530A1 (en) | 1973-06-07 |
| FR2164182A5 (en) | 1973-07-27 |
| JPS4875553A (en) | 1973-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |