GB1379871A - Continuous process for preparing benzothiazyl disulphide - Google Patents

Continuous process for preparing benzothiazyl disulphide

Info

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
Application number
GB323373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB1379871A publication Critical patent/GB1379871A/en
Expired legal-status Critical Current

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

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.
GB323373A 1972-02-28 1973-01-22 Continuous process for preparing benzothiazyl disulphide Expired GB1379871A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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
IT977307B (en) 1974-09-10
FR2174052B1 (en) 1978-09-08
FR2174052A1 (en) 1973-10-12
AR194642A1 (en) 1973-07-31
BE796007A (en) 1973-08-27
DE2309584A1 (en) 1973-09-13
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