JPS56133277A - 3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation - Google Patents

3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation

Info

Publication number
JPS56133277A
JPS56133277A JP3638680A JP3638680A JPS56133277A JP S56133277 A JPS56133277 A JP S56133277A JP 3638680 A JP3638680 A JP 3638680A JP 3638680 A JP3638680 A JP 3638680A JP S56133277 A JPS56133277 A JP S56133277A
Authority
JP
Japan
Prior art keywords
formula
compound
benzoisothiazole
pentachloro
dioxide
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.)
Pending
Application number
JP3638680A
Other languages
Japanese (ja)
Inventor
Saburo Kano
Katsunori Mitsukuma
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.)
Nippon Soda Co Ltd
Original Assignee
Nippon Soda Co Ltd
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 Nippon Soda Co Ltd filed Critical Nippon Soda Co Ltd
Priority to JP3638680A priority Critical patent/JPS56133277A/en
Publication of JPS56133277A publication Critical patent/JPS56133277A/en
Pending legal-status Critical Current

Links

Landscapes

  • Thiazole And Isothizaole Compounds (AREA)

Abstract

NEW MATERIAL:3,4,5,6,7-Pentachloro-1, 2-benzoisothiazole-1, 1-dioxide of formula I.
USE: Useful as an intermediate of pesticides, pharmaceuticals, pigments, etc. especially as an intermediate of bisazomethine pigments.
PROCESS: The compound of formula II is made to react with methanol in the presence of a mineral acid as a catalyst, and the resulting novel compound of formula III is made to react with sodium hydroxide, etc. The reaction product is successively reacted with a chlorinating agent to afford the compound of formula V, which is reacted with ammonia water added thereto in a proper inert solvent at 10°C W room temp. Neutralization of the precipitated compound with hydrochloric acid, etc. gives the compound of formula VI, which can be converted to the objective compound of formula I by reacting with phosphorus pentachloride or phosgen in the presence of a catalyst in an organic solvent such as ethylene glycol.
COPYRIGHT: (C)1981,JPO&Japio
JP3638680A 1980-03-22 1980-03-22 3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation Pending JPS56133277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3638680A JPS56133277A (en) 1980-03-22 1980-03-22 3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3638680A JPS56133277A (en) 1980-03-22 1980-03-22 3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation

Publications (1)

Publication Number Publication Date
JPS56133277A true JPS56133277A (en) 1981-10-19

Family

ID=12468400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3638680A Pending JPS56133277A (en) 1980-03-22 1980-03-22 3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation

Country Status (1)

Country Link
JP (1) JPS56133277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113264900A (en) * 2021-06-07 2021-08-17 南京中医药大学 Preparation method and medical application of benzisothiazole and benzothiophene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113264900A (en) * 2021-06-07 2021-08-17 南京中医药大学 Preparation method and medical application of benzisothiazole and benzothiophene

Similar Documents

Publication Publication Date Title
JPS56133277A (en) 3,4,5,6,7-pentachloro-1,2-benzoisothiazole-1,1-dioxide and its preparation
JPS5524125A (en) Preparation of substituted diphenyl ether
JPS5517339A (en) Preparation of thiourea dioxide
JPS54157520A (en) Recovery of dimethylformamide
GB1255752A (en) A novel imidazolidin 2-one-1-carboxylic acid amide and its use as a herbicidal agent
JPS5758645A (en) Preparation of carbonate
JPS5533416A (en) Production of hexamethyene bis-dicyandiamide
JPS5748971A (en) Novel alkylimidazole derivative
JPS54138556A (en) Preparation of hydantoin
GB1515991A (en) Process for the production of arylene-bis-sulphonyl urea salts
JPS567752A (en) Preparation of 2- sulfophenylhydrazino -butane diacid derivative
JPS57185234A (en) Preparation of hydroxyphenylacetic acid
JPS57179154A (en) Preparation of 2,2'-dihydroxy-1,1'-dinaphthyl disulfide
JPS55136239A (en) Z-10-alkenal
JPS5799544A (en) Preparation of chloroacetaldehyde
JPS5794003A (en) Perfluorocarbon polymer and its production
JPS55153759A (en) Preparation of dicyanodihydroxybenzene derivative
JPS57171958A (en) Preparation of 1-hydroxypropane derivative
JPS56127360A (en) Preparation of 4-benzoyl-5-hydroxypyrazole compound
JPS57136563A (en) Preparation of 4-thio-3-buten-2-one derivative
JPS56166138A (en) Preparation of 4-trifluoromethyl-4'-isopropenyl-diphenyl ether
JPS5517335A (en) 5-fluoro-6-hydroxy-6-carboxy-5,6-dihydro-uracil and its preparation
JPS5929659A (en) Preparation of thiosalicylic acid and dithiosalicylic acid
JPS5547651A (en) Production of sulfoxyimine
JPS5772983A (en) Preparation of 1,2,3,4,6,7,8,9-octahydrophenazine