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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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 (xx) | 1976-06-30 |
Family
ID=10475023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1707772A CH576954A5 (xx) | 1971-12-01 | 1972-11-23 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS4875553A (xx) |
| BE (1) | BE792103A (xx) |
| BR (1) | BR7208423D0 (xx) |
| CA (1) | CA983026A (xx) |
| CH (1) | CH576954A5 (xx) |
| DE (1) | DE2258530A1 (xx) |
| ES (1) | ES409127A1 (xx) |
| FR (1) | FR2164182A5 (xx) |
| GB (1) | GB1381730A (xx) |
| IT (1) | IT973782B (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2916912A1 (de) * | 1979-04-26 | 1980-11-06 | Bayer Ag | Verfahren zur herstellung von 4-nitrotoluol-2-sulfonsaeure |
| DE3063958D1 (en) * | 1979-06-08 | 1983-08-04 | Ciba Geigy Ag | Process for preparing 4,4'-dinitrostilbene-2,2'-disulfonic acid and its salts and its use |
| DE3519552A1 (de) * | 1985-05-31 | 1986-12-04 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeuresalzen |
| ES2015100B3 (es) * | 1987-08-12 | 1990-08-01 | Ciba-Geigy Ag | Proceso de produccion del acido 4,4'- dinitrostilbeno 2,2'disulfon |
| DE4330377A1 (de) * | 1993-09-08 | 1995-03-09 | Bayer Ag | Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure |
| CN106146357B (zh) * | 2015-04-14 | 2017-12-26 | 上海合丽亚日化技术有限公司 | 一种dsd酸的制备方法 |
| CN107417581A (zh) * | 2017-08-15 | 2017-12-01 | 连云港莱亚化学有限公司 | 一种水相加压法合成dsd酸氧化中间体的方法 |
-
0
- BE BE792103D patent/BE792103A/xx 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/it active
- 1972-11-29 DE DE19722258530 patent/DE2258530A1/de active Pending
- 1972-11-30 ES ES409127A patent/ES409127A1/es not_active Expired
- 1972-11-30 BR BR842372A patent/BR7208423D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT973782B (it) | 1974-06-10 |
| DE2258530A1 (de) | 1973-06-07 |
| CA983026A (en) | 1976-02-03 |
| BE792103A (fr) | 1973-05-30 |
| ES409127A1 (es) | 1975-11-16 |
| JPS4875553A (xx) | 1973-10-11 |
| GB1381730A (en) | 1975-01-29 |
| FR2164182A5 (xx) | 1973-07-27 |
| BR7208423D0 (pt) | 1973-08-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |