Patent ID: 6331650
Filing Date: 2001-12-18
Classification: C07C,C07D

Abstract:
A method for manufacturing an aminoalcohol expressed by Formula 3a ##STR18##where n is 0 or 1; R.sup.1 and R.sup.2 are each a hydrogen atom, a monovalent saturated hydrocarbon group which is optionally substituted, or a monovalent aromatic group which is optionally substituted, or R.sup.1 and R.sup.2 are bonded together into a divalent saturated hydrocarbon group which is optionally substituted; R.sup.3, R.sup.4, and R.sup.5 are each a hydrogen atom, a monovalent saturated hydrocarbon group which is optionally substituted, or a monovalent aromatic group which is optionally substituted; and R.sup.6 and R.sup.7 are each a monovalent saturated hydrocarbon group which is optionally substituted or a monovalent aromatic group which is optionally substituted, or R.sup.6 and R.sup.7 are bonded together into a divalent saturated aliphatic group which is optionally substituted, which method comprises:reacting a cyclic hemiacetal expressed by Formula 1 ##STR19##where n, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are defined the same as abovewith hydrogen and a secondary amine expressed by Formula 2a ##STR20##where R and R are defined the same as above in the presence of a hydrogenation catalyst to obtain the aminoalcohol of Formula 3a.