Process for producing methyleneimine compound.

摘要

A methyleneimine compound represented by the general formula: CH2=N-CH2-R wherein R is phenyl, alkyl-substituted phenyl or hydroxymethyl is produced by thermally decomposing a hexahydrotriazine compound represented by the general formula: <CHEM> wherein R has the same meaning as defined above, at 130 DEG to 220 DEG C, preferably in the presence of a catalyst of an amine salt, a quaternary ammonium salt, or at least one of mono- to tri-valent metal salts of an organic acid or an inorganic acid.