Process of producing iminothiyzoline derivatives.

摘要

There is disclosed a process for producing an iminothiazoline derivative of the general formula: <CHEM> wherein R<1> is halogen, halo(lower)alkyl, halo(lower)alkoxy or halo(lower)alkylthio; R<2> is hydrogen or halogen; and R<4> is hydrogen or lower alkyl. This compound (I) can be obtained by cyclization of a thiourea derivative of the general formula: <CHEM> wherein R<1>, R<2> and R<4> are each the same as defined above, and R<3> is hydrogen or (lower)alkylcarbonyl optionally substituted with at least one of halogen, lower alkyl and lower alkoxy. zoli