GB442954A - Improvements in methods of preparing organic disulphides - Google Patents

Improvements in methods of preparing organic disulphides

Info

Publication number
GB442954A
GB442954A GB26913/34A GB2691334A GB442954A GB 442954 A GB442954 A GB 442954A GB 26913/34 A GB26913/34 A GB 26913/34A GB 2691334 A GB2691334 A GB 2691334A GB 442954 A GB442954 A GB 442954A
Authority
GB
United Kingdom
Prior art keywords
mercapto
hydrogen peroxide
oxidized
nitrobenzthiazole
mercaptobenzthiazole
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
GB26913/34A
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.)
Wingfoot Corp
Original Assignee
Wingfoot Corp
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 Wingfoot Corp filed Critical Wingfoot Corp
Publication of GB442954A publication Critical patent/GB442954A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/267—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being deflected in determined directions
    • 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)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

1-Mercaptobenzthiazole, or nitro, amino or alkyl derivatives thereof are oxidized to the the corresponding dibenzthiazyldisulphides by means of hydrogen peroxide. An acid such as sulphuric, hydrochloric, formic, nitric, phosphoric, acetic or chloracetic acid is usually added to facilitate the precipitation of the product and the mercaptan is preferably oxidized in the presence of a liquid medium such as alcohol. Instead of the mercaptan its sodium, potassium, lithium, calcium, strontium or barium compound may be used. In examples, 1-mercaptobenzthiazole or its sodium salt is oxidized with 30 per cent hydrogen peroxide. 1-Mercapto - 4 or 5 - methylbenzthiazole, 1 - mercapto - 4 : 6 - dimethylbenzthiazole, 1-mercapto-4- or 5-chlorbenzthiazole, 1-mercapto-4-nitrobenzthiazole, 1-mercapto-5-aminobenzthiazole and 1-mercapto-3-phenylbenzthiazole are specified as starting materials. The Specification as open to inspection under Sect. 91 comprises also the oxidation of mercaptans in general with hydrogen peroxide. The following are mentioned: 1-mercaptothiazole, 1-mercaptobenzimidazole, 1-mercapto5 - nitrobenzthiazole, 1 - mercaptonaphthothiazole, 1 - mercapto - 3 - phenylthiazole, thiophenol, thiocresol, thioxylol, aminothiophenol, thionaphthol, ethylmercaptan, butylmercaptan and propylmercaptan. This subject-matter does not appear in the Specification as accepted.
GB26913/34A 1933-11-23 1934-09-19 Improvements in methods of preparing organic disulphides Expired GB442954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US442954XA 1933-11-23 1933-11-23

Publications (1)

Publication Number Publication Date
GB442954A true GB442954A (en) 1936-02-19

Family

ID=21931568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26913/34A Expired GB442954A (en) 1933-11-23 1934-09-19 Improvements in methods of preparing organic disulphides

Country Status (2)

Country Link
FR (1) FR442954A (en)
GB (1) GB442954A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463178A (en) * 1982-12-27 1984-07-31 The Goodyear Tire & Rubber Company Method of preparing dibenzothiazolyl disulfides
CN110873771A (en) * 2019-12-16 2020-03-10 山东益丰生化环保股份有限公司 Method for detecting content of sulfydryl of polythiol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463178A (en) * 1982-12-27 1984-07-31 The Goodyear Tire & Rubber Company Method of preparing dibenzothiazolyl disulfides
CN110873771A (en) * 2019-12-16 2020-03-10 山东益丰生化环保股份有限公司 Method for detecting content of sulfydryl of polythiol

Also Published As

Publication number Publication date
FR442954A (en) 1912-09-13

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