Reacting with the manufacturing method, and amide amino acid of the light-colored conversion amino group content fatty acid derivative or the manufacturing method

摘要

PURPOSE: To simply obtain a high-quality batty acid derivative having extremely favorable hue, capable of providing an amidoamino acid having excellent hue by reacting a fatty acid with a polyamine in the presence of a specific inorganic reducing agent and a specific metal. ;CONSTITUTION: A fatty acid or its ester is reacted with a polyamine in the presence of an inorganic reducing agent (preferably NaBH₄) selected from among borohydrides of the formula M¹(BH₄)_n [M¹ is an alkali(earth)metal, Al, etc.; (n) is 1-4 as a valency of M¹] or a hydride of the formula M²H_n [M² is an alkali (or alkaline earth)metal, Ti, etc.; (n) is 1-4 as a valency of M²] and a metal of the group VIII of the periodic table, its salt or its hydroxide [preferably iron, iron salt or iron (hydr)oxide] to provide the objective compound. A fatty acid or its ester of the formula R¹COOR² [R¹ is a 9-17C straight- chain alkyl; R₂ is H or CH₃) or its ester is preferably used as the fatty acid or its ester. Aminoethylethanolamine or dimethylaminopropylamine is preferably used as the polyamine.;COPYRIGHT: (C)1996,JPO