Process for stabilizing methyleneimine compound and stabilized methyleneimine composition

摘要

A cyclohexylmethyleneimine compound represented by the following general formula: <IMAGE> wherein R is an alkyl group bonded to individual carbon atom of the cyclohexyl ring and n is an integer of 0 to 5, or a methyleneimine composition containing at least the cyclohexylmethyleneimine compound can be stabilized by an organic lithium compound represented by the following general formula: R'-Li, wherein R' is an alkyl, aryl or aralkyl group, and can be preserved stably for a long time.