GB728969A - Manufacture of tribromo- and trichloro-methyl sulphone derivatives - Google Patents
Manufacture of tribromo- and trichloro-methyl sulphone derivativesInfo
- Publication number
- GB728969A GB728969A GB2089452A GB2089452A GB728969A GB 728969 A GB728969 A GB 728969A GB 2089452 A GB2089452 A GB 2089452A GB 2089452 A GB2089452 A GB 2089452A GB 728969 A GB728969 A GB 728969A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenyl
- methyl
- chloro
- ch2cooh
- sulphone
- 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
- C07C315/00—Preparation of sulfones; Preparation of sulfoxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Tribromo- and trichloro-methyl sulphones are prepared by treating one molecular proportion of a thioglycollic acid, or a salt thereof, having the general formula R.S.CH2COOH in which R represents a -CH2COOH group or a hydrocarbon or heterocyclic radical which is attached through one of its carbon atoms to the sulphur atom of the above formula, and which may contain halogen, nitro, acylamino, alkoxy and sulpho substituents but no -CH2COOH groups, with, for each -CH2COOH grouping not less than 5, and preferably about 7 molecular proportions of a hypobromite or hypochlorite in the form of an aqueous solution containing hypobromite or hypochlorite ions. The products are mostly new and have pesticidal properties. In examples (1) an aqueous solution of phenyl thioglycollic acid and sodium hydroxide is added to aqueous sodium hypochlorite maintained at a temperature not exceeding 40 DEG C., the product being phenyl trichloro-methyl sulphone; phenyl tribromo-methyl sulphone is obtained using sodium hypobromite solution; (2) aqueous sodium hypo-bromite or -chlorite solution is rapidly added to cooled aqueous thiodiglycollic acid-yielding hexabromo (chloro) dimethyl sulphone. In like manner, ethyl-, 4-chlorophenyl-, 2 : 4 - and 2 : 5 - dichlorophenyl-, a 2 - methyl chloro phenyl -, 4 - chloro - 2-methyl phenyl-, b -phenyl ethyl-, 4-chloro-2-nitro phenyl-, 2-naphthyl-, 2-benzthiazyl- and 4-nitro phenyl-trichloromethyl sulphones and 2 : 4-dichlorophenyl tribromomethyl sulphone may be prepared.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2089452A GB728969A (en) | 1952-08-20 | 1952-08-20 | Manufacture of tribromo- and trichloro-methyl sulphone derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2089452A GB728969A (en) | 1952-08-20 | 1952-08-20 | Manufacture of tribromo- and trichloro-methyl sulphone derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
GB728969A true GB728969A (en) | 1955-04-27 |
Family
ID=10153565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2089452A Expired GB728969A (en) | 1952-08-20 | 1952-08-20 | Manufacture of tribromo- and trichloro-methyl sulphone derivatives |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB728969A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959517A (en) * | 1958-10-13 | 1960-11-08 | Stauffer Chemical Co | Bis (trichloromethyl) sulfone as a biocide |
US3615745A (en) * | 1969-03-10 | 1971-10-26 | Abbott Lab | Antimicrobial coatings and method using diiodomethyl sulfones |
CN105541677A (en) * | 2016-02-17 | 2016-05-04 | 威海翔宇环保科技股份有限公司 | Preparation of novel bactericide bissulfone |
-
1952
- 1952-08-20 GB GB2089452A patent/GB728969A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959517A (en) * | 1958-10-13 | 1960-11-08 | Stauffer Chemical Co | Bis (trichloromethyl) sulfone as a biocide |
US3615745A (en) * | 1969-03-10 | 1971-10-26 | Abbott Lab | Antimicrobial coatings and method using diiodomethyl sulfones |
CN105541677A (en) * | 2016-02-17 | 2016-05-04 | 威海翔宇环保科技股份有限公司 | Preparation of novel bactericide bissulfone |
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