Trifluoromethyl-2-pyridinone or pyridinthione compounds and process for the preparation of the same

摘要

A trifluoromethyl-2-(thio)pyridone compound having the formula: <IMAGE> wherein X represents a hydrogen atom or a halogen atom, Y1 and Y2 each represents a hydrogen atom, a halogen atom or a trifluoromethyl group, and Z represents an oxygen atom or a sulfur atom, in which either Y1 or Y2 represents a trifluoromethyl group, and when X and Y2, or X and Y1 represent a hydrogen atom at the same time, then Z represents a sulfur atom, and a process for preparing the same.