2-Chloro-3',4'-dihydroxyacetophenone → 2-(3,4-Dimethoxyphenyl)-4-(3,4-dihydroxyphenyl)thiazole hydrochloride

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Reaktionsschritte

In 20 ml of ethanol were suspended 367 mg of 3',4'-dihydroxy-2-chloroacetophenone and 430 mg of 3,4-dimethoxythiobenzamide. The suspension was refluxed for 3 hours with heating. After cooling, the resulting crystals were collected by filtration, ethanol-washed and dried. The dried material was recrystallized from ethanol to obtain 160 mg of 2-(3,4-dimethoxyphenyl)-4-(3,4-dihydroxyphenyl)thiazole hydrochloride as yellow acicular crystals.

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