asukorubin acid derivative and its manufacturing method

摘要

NEW MATERIAL:A compound shown by formula I {K1 to K4 are OH or group shown by formula II [R1 to R3 are (OH-substituted) 1-24C alkyl or alkenyl] with the proviso that at least one of K1 to K4 is group shown by formula II}. EXAMPLE:L-Ascorbic acid-2-[(3-(N-dodecyl-N,N-dimethylammonium)-2-hydroxy) propyl] phosphate. USE:A beautifying agent having excellent shelf stability and compatibility with cosmetic bases. PREPARATION:An ascorbic phosphoric ester shown by formula III [L1 to L4 are OH or group shown by formula IV (n is 2 or 1, when n=2, M is H or monovalent cation and when n=1, M is divalent cation) with the proviso that at least one of L1 to L4 is group shown by formula IV] is reacted with a glycidylammonium salt shown by formula V (X- is anion).