GB1379871A - Continuous process for preparing benzothiazyl disulphide - Google Patents
Continuous process for preparing benzothiazyl disulphideInfo
- Publication number
- GB1379871A GB1379871A GB323373A GB323373A GB1379871A GB 1379871 A GB1379871 A GB 1379871A GB 323373 A GB323373 A GB 323373A GB 323373 A GB323373 A GB 323373A GB 1379871 A GB1379871 A GB 1379871A
- Authority
- GB
- United Kingdom
- Prior art keywords
- maintained
- reaction mixture
- alkali metal
- aqueous solution
- preparing
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
- C07D277/62—Benzothiazoles
- C07D277/68—Benzothiazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
- C07D277/70—Sulfur atoms
- C07D277/76—Sulfur atoms attached to a second hetero atom
- C07D277/78—Sulfur atoms attached to a second hetero atom to a second sulphur atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Thiazole And Isothizaole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1379871 Benzothiazolyl disulphide AMERICAN CYANAMID CO 22 Jan 1973 [28 Feb 1972] 3233/73 Heading C2C A continuous process for preparing benzothiazyl disulphide by oxidizing mercaptobenzothiazole with chlorine, comprises continuously introducing below the surface of an aqueous reaction mixture which is maintained at a temperature of from 20‹ to 75‹ C. and which is being vigorously agitated by a stirrer having a tip speed in excess of 400 ft./min., separate streams of an aqueous solution of an alkali metal salt of mercaptobenzothiazole, an aqueous solution of an alkali metal hydroxide and gaseous chlorine, the flow of the aqueous solution of the alkali metal hydroxide and of the gaseous chlorine being controlled so that the pH of the reaction mixture is maintained within the range of from 7 to 10 and the redox potential of the reaction mixture is maintained within the range of from - 150 to + 250 millivolts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23007972A | 1972-02-28 | 1972-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1379871A true GB1379871A (en) | 1975-01-08 |
Family
ID=22863877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB323373A Expired GB1379871A (en) | 1972-02-28 | 1973-01-22 | Continuous process for preparing benzothiazyl disulphide |
Country Status (7)
Country | Link |
---|---|
AR (1) | AR194642A1 (en) |
BE (1) | BE796007A (en) |
DE (1) | DE2309584A1 (en) |
FR (1) | FR2174052B1 (en) |
GB (1) | GB1379871A (en) |
IT (1) | IT977307B (en) |
NL (1) | NL7301382A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6124467A (en) * | 1998-12-08 | 2000-09-26 | Bayer Aktiengesellschaft | Process for the preparation of dithiazolyl disulfides |
US6610857B2 (en) | 2000-11-08 | 2003-08-26 | Bayer Aktiengesellschaft | Process for the production of dithiazolyl disulfides |
CN104230843A (en) * | 2014-08-29 | 2014-12-24 | 山东海迈新材料有限公司 | Process for sectional oxosynthesis of DM (dibenzothiazyl disulfide) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3329976A1 (en) * | 1983-08-19 | 1985-02-28 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING 2,2'-DIBENZOTHIAZOLYLDISULFID |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2468952A (en) * | 1944-12-12 | 1949-05-03 | Goodrich Co B F | Process for the preparation of di-thiazyl disulfide |
-
1973
- 1973-01-22 GB GB323373A patent/GB1379871A/en not_active Expired
- 1973-01-31 NL NL7301382A patent/NL7301382A/xx not_active Application Discontinuation
- 1973-02-06 AR AR24643073A patent/AR194642A1/en active
- 1973-02-12 IT IT4819873A patent/IT977307B/en active
- 1973-02-26 DE DE19732309584 patent/DE2309584A1/en active Pending
- 1973-02-26 FR FR7306680A patent/FR2174052B1/fr not_active Expired
- 1973-02-27 BE BE128138A patent/BE796007A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6124467A (en) * | 1998-12-08 | 2000-09-26 | Bayer Aktiengesellschaft | Process for the preparation of dithiazolyl disulfides |
US6248896B1 (en) | 1998-12-08 | 2001-06-19 | Bayer Aktiengesellschaft | Process for the preparation of dithiazolyl disulfides |
US6610857B2 (en) | 2000-11-08 | 2003-08-26 | Bayer Aktiengesellschaft | Process for the production of dithiazolyl disulfides |
CN104230843A (en) * | 2014-08-29 | 2014-12-24 | 山东海迈新材料有限公司 | Process for sectional oxosynthesis of DM (dibenzothiazyl disulfide) |
CN104230843B (en) * | 2014-08-29 | 2016-06-29 | 山东海迈新材料有限公司 | The technique of staged oxidation synthesis DM |
Also Published As
Publication number | Publication date |
---|---|
FR2174052A1 (en) | 1973-10-12 |
AR194642A1 (en) | 1973-07-31 |
DE2309584A1 (en) | 1973-09-13 |
IT977307B (en) | 1974-09-10 |
BE796007A (en) | 1973-08-27 |
FR2174052B1 (en) | 1978-09-08 |
NL7301382A (en) | 1973-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |