含磺酰氯基吡唑啉酮类偶氮化合物的合成

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含磺酰氯基吡唑啉酮类偶氮化合物的合成

汤立军^a;张淑芬^a;崔志华^a;杨锦宗^a;高文涛^b

^a State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China ^b Department of Chemistry, Bohai University, Jinzhou 121003, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-10-28 发布日期:2004-10-28
通讯作者: 汤立军

Synthesis of Chlorosulfonyl-containing Pyrazolone Azo Compounds with Thionyl Chloride-DMF System

TANG Lijiu^a;ZHANG Shufen^a;CUI Zhihua^a;YANG Jinzong^a;GAO Wentao^b

^a State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China ^b Department of Chemistry, Bohai University, Jinzhou 121003, China

Received:1900-01-01 Revised:1900-01-01 Online:2004-10-28 Published:2004-10-28
Contact: TANG Lijiu

摘要/Abstract

摘要： Chlorosulfonyl-containing pyrazolone azo compounds (2a, 2b) have been prepared by reaction of the corresponding sodium sulfonate (la, lb) with thionyl chloride in the presence of a catalytic quantity of N,Ndimethylformamide in dry benzene. The effects of reaction temperature, time, catalyst and solvent amount on the yield of 2a and 2b were investigated. The results show that chlorination of 1a and 1b under optimal conditions gives 2a and 2b in 95.5% and 99.2% yield respectively. The given method is facile and suitable for large-scale synthesis.

关键词: 磺酰氯;酮类;合成;吡唑啉酮;偶氮化合物

Abstract: Chlorosulfonyl-containing pyrazolone azo compounds (2a, 2b) have been prepared by reaction of the corresponding sodium sulfonate (la, lb) with thionyl chloride in the presence of a catalytic quantity of N,Ndimethylformamide in dry benzene. The effects of reaction temperature, time, catalyst and solvent amount on the yield of 2a and 2b were investigated. The results show that chlorination of 1a and 1b under optimal conditions gives 2a and 2b in 95.5% and 99.2% yield respectively. The given method is facile and suitable for large-scale synthesis.

Key words: azo compounds, thionyl chloride, chlorination, pyrazolone, synthesis

汤立军,张淑芬,崔志华,杨锦宗,高文涛. 含磺酰氯基吡唑啉酮类偶氮化合物的合成[J]. CIESC Journal.

TANG Lijiu,ZHANG Shufen,CUI Zhihua,YANG Jinzong,GAO Wentao. Synthesis of Chlorosulfonyl-containing Pyrazolone Azo Compounds with Thionyl Chloride-DMF System[J]. .

含磺酰氯基吡唑啉酮类偶氮化合物的合成

Synthesis of Chlorosulfonyl-containing Pyrazolone Azo Compounds with Thionyl Chloride-DMF System

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