Preparation method of dichloropentachloromethylthiazole

The invention discloses a preparation method of dichloropentachloromethylthiazole, which is characterized in that 2, 3-dichloropropene, sodium thiocyanate, sulfuryl chloride and the like are used as main raw materials, 2-chloro-5-chloromethylthiazole is prepared by changing a reaction solvent, react...

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Bibliographic Details
Main Authors WU RUJUN, GUO DAPENG, YANG JIE, RONG QINGSHENG
Format Patent
LanguageChinese
English
Published 22.06.2021
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention discloses a preparation method of dichloropentachloromethylthiazole, which is characterized in that 2, 3-dichloropropene, sodium thiocyanate, sulfuryl chloride and the like are used as main raw materials, 2-chloro-5-chloromethylthiazole is prepared by changing a reaction solvent, reaction temperature and the like, and the product is purified. According to the preparation method of dichloropentachloromethylthiazole, 2, 3-dichloropropene, ammonium thiocyanate, sulfuryl chloride and the like are used as main raw materials, 2-chloro-5-chloromethylthiazole is prepared by changing a reaction solvent, reaction temperature and the like, and the product is purified. Experimental results show that dichloroethane is used as a solvent, 2, 3-dichloropropene and ammonium thiocyanate are sequentially subjected to a substitution reaction, an isomerization reaction and a chlorination-cyclization reaction through a one-pot process, the 2-chloro-5-chloromethylthiazole can be prepared through simple distillation, t
Bibliography:Application Number: CN202011456990