PROCESS FOR PRODUCTION OF PYRAZOLE COMPOUNDS

摘要

A process by which pyrazole compounds useful as intermediates in the preparation of drugs such as diabetes remedies can be easily produced in hig h yield, specifically, a process for the production of compounds represented b y the general formula (I) or salts thereof: (I) [wherein R1 is a hydrocarbon group which may be substituted; and n is an integer of 1 to 4], characterize d by reacting a compound represented by the general formula (II) or a salt thereof with hydrazine or a salt thereof: (II) [wherein Q is optionally substituted hydroxyl or optionally substituted amino; R is a hydrocarbon gro up which may be substituted; and n and R1 are each as defined above].