专利名称:SYNTHESIS OF 2-AMINOTHIAZOLE
DERIVATIVE
发明人:ARAHORI HIDEO,SHIDA TAKAFUMI,AOKI KATSUMICHI
申请号:JP21561983
申请日:19831116
公开号:JPS60109579A
公开日:
reaction between pvp and amino19850615
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摘要:PURPOSE:To obtain the titled substance having CO group at the 7-position and useful as an intermediate of agricultural chemicals, by reacting thiourea with chlorine in an aqueous medium, and heating the resultant formamidine disulfide hydrochloride in the presence of a beta-diketone compound. CONSTITUTION:The titled substance having CO group at the 7-position can be produced by (1) treating thiourea with chlorine in an aqueous medium to produce formamidine disulfide hydrochloride, and (2) adding a beta-diketone compound of formula (R1-R6 are H, 1-6C alkyl or cycloalkyl) to the reaction product and heating at a temperature between 60 deg.C and the boiling point of the reaction solvent for 1-6hr. The molar ratio of the formamidine disulfide hydrochloride to the beta-diketone compound is 1.1-1.4. EFFECT:The objective compound can be produced in high yield by carrying out the reaction in an aqueous medium.
申请人:KUREHA KAGAKU KOGYO KK
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