ALUMINUM CATALYST

摘要

The present invention makes it possible to obtain 1-isopulegol with high yield and high selectivity by performing a citronellal selective-ring-closing reaction using an aluminum catalyst obtained by reacting: one or more types of aluminum compound selected from aluminum alkyls and aluminum hydrides; and one or more types of phenol compounds selected from 2-cycloalkyl-6-arylphenols and di(2-cycloalkyl-6-arylphenols).