GB1381730A - Process for the industrial manufacture of dinitrostilbene disulphonic acid - Google Patents
Process for the industrial manufacture of dinitrostilbene disulphonic acidInfo
- Publication number
- GB1381730A GB1381730A GB5583871A GB5583871A GB1381730A GB 1381730 A GB1381730 A GB 1381730A GB 5583871 A GB5583871 A GB 5583871A GB 5583871 A GB5583871 A GB 5583871A GB 1381730 A GB1381730 A GB 1381730A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dinitrostilbene
- disulphonic acid
- industrial manufacture
- acid
- disulphonic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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)
Abstract
1381730 4,4<SP>1</SP>-Dinitrostilbene-2,2<SP>1</SP>-disulphonic acid CLAYTON ANILINE CO Ltd 15 Nov 1972 [1 Dec 1971] 55838/71 Heading C2C 4,41-Dinitrostilbene-2,2<SP>1</SP>-disulphonic acid is obtained by treating 4-nitrotoluene-2-sulphonic acid with liquid or gaseous halogen under alkaline conditions at a temperature below the boiling point of the reaction mixture, preferably at 80 to 90‹ C. The process may be carried out continuously. Examples are given which illustrate the process.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE792103D BE792103A (en) | 1971-12-01 | NEW MANUFACTURING PROCESS FOR DINITROSTILBENE DISULPHONIC ACID ON AN INDUSTRIAL SCALE | |
GB5583871A GB1381730A (en) | 1971-12-01 | 1971-12-01 | Process for the industrial manufacture of dinitrostilbene disulphonic acid |
JP47116713A JPS4875553A (en) | 1971-12-01 | 1972-11-22 | |
CH1707772A CH576954A5 (en) | 1971-12-01 | 1972-11-23 | |
CA157,523A CA983026A (en) | 1971-12-01 | 1972-11-27 | Process for the industrial manufacture of dinitrostilbene disulphonic acid |
FR7242281A FR2164182A5 (en) | 1971-12-01 | 1972-11-28 | |
IT5434872A IT973782B (en) | 1971-12-01 | 1972-11-29 | PROCEDURE FOR PRODUCING ACID 4 4 DINITROSTILBEN 2 2 DISULFURNICO |
DE19722258530 DE2258530A1 (en) | 1971-12-01 | 1972-11-29 | PROCESS FOR THE PREPARATION OF 4.4'DINITROSTILBEN-2.2'-DISULPHONIC ACID |
BR842372A BR7208423D0 (en) | 1971-12-01 | 1972-11-30 | PROCESS FOR OBTAINING 4 4 'DINITROSTYLBENE 2 2' DISSULPHONIC ACID |
ES409127A ES409127A1 (en) | 1971-12-01 | 1972-11-30 | Process for the industrial manufacture of dinitrostilbene disulphonic acid |
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 |
---|---|
GB1381730A true GB1381730A (en) | 1975-01-29 |
Family
ID=10475023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5583871A Expired GB1381730A (en) | 1971-12-01 | 1971-12-01 | Process for the industrial manufacture of dinitrostilbene disulphonic acid |
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) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4680146A (en) * | 1985-05-31 | 1987-07-14 | Bayer Aktiengesellschaft | Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulphonic acid salts |
US5808141A (en) * | 1993-09-08 | 1998-09-15 | Bayer Aktiengesellschaft | Process for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid |
CN106146357A (en) * | 2015-04-14 | 2016-11-23 | 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 |
Families Citing this family (3)
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. |
EP0305648B1 (en) * | 1987-08-12 | 1990-03-28 | Ciba-Geigy Ag | Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid |
-
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 DE DE19722258530 patent/DE2258530A1/en active Pending
- 1972-11-29 IT IT5434872A patent/IT973782B/en active
- 1972-11-30 BR BR842372A patent/BR7208423D0/en unknown
- 1972-11-30 ES ES409127A patent/ES409127A1/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4680146A (en) * | 1985-05-31 | 1987-07-14 | Bayer Aktiengesellschaft | Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulphonic acid salts |
US5808141A (en) * | 1993-09-08 | 1998-09-15 | Bayer Aktiengesellschaft | Process for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid |
CN106146357A (en) * | 2015-04-14 | 2016-11-23 | 上海合丽亚日化技术有限公司 | A kind of preparation method of DSD 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 |
Also Published As
Publication number | Publication date |
---|---|
BE792103A (en) | 1973-05-30 |
CH576954A5 (en) | 1976-06-30 |
ES409127A1 (en) | 1975-11-16 |
CA983026A (en) | 1976-02-03 |
JPS4875553A (en) | 1973-10-11 |
FR2164182A5 (en) | 1973-07-27 |
IT973782B (en) | 1974-06-10 |
DE2258530A1 (en) | 1973-06-07 |
BR7208423D0 (en) | 1973-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |