FR2376854A1 - Vulcanisation accelerating 2,2-benzo-thiazyl-di:sulphide prodn. - by oxidn. of 2-mercapto-benzothiazole with chlorine in aq. medium - Google Patents

Vulcanisation accelerating 2,2-benzo-thiazyl-di:sulphide prodn. - by oxidn. of 2-mercapto-benzothiazole with chlorine in aq. medium

Info

Publication number
FR2376854A1
FR2376854A1 FR7800575A FR7800575A FR2376854A1 FR 2376854 A1 FR2376854 A1 FR 2376854A1 FR 7800575 A FR7800575 A FR 7800575A FR 7800575 A FR7800575 A FR 7800575A FR 2376854 A1 FR2376854 A1 FR 2376854A1
Authority
FR
France
Prior art keywords
medium
vulcanisation
esp
thiazyl
oxidn
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.)
Withdrawn
Application number
FR7800575A
Other languages
French (fr)
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 FR2376854A1 publication Critical patent/FR2376854A1/en
Withdrawn legal-status Critical Current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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

In the prepn. of 2,2'-benzothiazyldisulphide (I) by addn. of 2-mercaptobenzothiazole (II) with Cl2 at 20-75 degrees C, separate streams of Cl2 and an aq. soln. of an alkali salt (esp. Na salt) of (II) are fed simultaneously below the surface of a vigorously stirred aq. medium at such a rate that the instantaneous concn. of each of the reactants at any time is zero. The pH of the aq. medium is maintained at 6 - 9 during the reaction by the addn. of aq. alkali hydroxide soln. (esp. NaOH) and the resulting (I) is recovered by filtration. Process gives high yields of (I) with a low level of contamination by (II). (I) is esp. useful as a vulcanisation accelerator for rubber, where the low level of (I) is important for preventing scorching of the rubber.
FR7800575A 1977-01-10 1978-01-10 Vulcanisation accelerating 2,2-benzo-thiazyl-di:sulphide prodn. - by oxidn. of 2-mercapto-benzothiazole with chlorine in aq. medium Withdrawn FR2376854A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75822277A 1977-01-10 1977-01-10

Publications (1)

Publication Number Publication Date
FR2376854A1 true FR2376854A1 (en) 1978-08-04

Family

ID=25050972

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800575A Withdrawn FR2376854A1 (en) 1977-01-10 1978-01-10 Vulcanisation accelerating 2,2-benzo-thiazyl-di:sulphide prodn. - by oxidn. of 2-mercapto-benzothiazole with chlorine in aq. medium

Country Status (3)

Country Link
JP (1) JPS5387354A (en)
DE (1) DE2800462A1 (en)
FR (1) FR2376854A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433153A (en) * 1981-07-07 1984-02-21 Hoechst Aktiengesellschaft Process for the manufacture of 2,6-dichlorobenzoxazole and 2,6-dichlorobenzthiazole
DE3329976A1 (en) * 1983-08-19 1985-02-28 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 2,2'-DIBENZOTHIAZOLYLDISULFID

Also Published As

Publication number Publication date
DE2800462A1 (en) 1978-07-13
JPS5387354A (en) 1978-08-01

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Legal Events

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