METHOD FOR PRODUCING ALLENE DERIVATIVE

摘要

PROBLEM TO BE SOLVED: To provide a method for easily producing a polysubstituted allene derivative under a relatively mild condition. SOLUTION: The allene derivative expressed by formula (1) is produced by reacting an allylsilane (2) with a cyclopropanating agent in the presence of a base to obtain the 1st reaction mixture, thermally decomposing the reaction mixture and reacting with a nucleophilic agent (3) in the presence of a transition metal compound. In the formulas, R1, R2and R3are each independently H, a hydrocarbon group or the like; A1, A2and A3are each a hydrocarbon group or the like; R4is a substituent derived from the nucleophilic agent; and Y is a counter cation. COPYRIGHT: (C)2004,JPO&NCIPI