| abstract |
PURPOSE: To readily obtain the titled water-soluble and odorless compound useful as a reducing agent for the first permanent waving solution, etc., by reacting a sugar lactone compound with an aminoalkanethiol. n CONSTITUTION: (A) A sugar lactone compound, preferably obtained by intramolecularly dehydrocyclizing aldonic acid or uronic acid derived from reducing monosaccharides or reducing disaccharides is reacted with (B) an aminoalkanethiol, preferably expressed by the formula H 2 N-R-SH (R is 1W18C alkylene or substituted alkylene) to afford the aimed compound. n COPYRIGHT: (C)1987,JPO&Japio |