CAS: 22042-96-2; Diethylenetriaminepenta(Methylenephosphonic Acid) Xsodium Salt

专利信息

专利号:WO-9507881-A1
优先权日:1993-09-14
标题:Synthesis of sarcosinate surfactants
发明人：HEINZMAN STEPHEN WAYNE; DUPONT JEFFREY SCOTT
权利人:PROCTER & GAMBLE
摘要:A method for preparing sarcosinate amido acids and salts thereof of formula (IA) wherein R is a C1 or higher hydrocarbyl substituent, and M is a cationic moiety selected from alkali metal salts and hydrogen, comprising the steps of (a) reacting under anhydrous conditions, in the presence of a base catalyst with basicity equal to or greater than alkoxide catalyst, a carboxylic acid ester of formula (II) with a sarcosine amino acid salt of structure (B) wherein R is as described before, R1 is a C¿1? or higher hydrocarbyl substituent, and M is an alkali metal salt; and (b) optionally, neutralizing the sarcosinate amido acid salt formed by step (a) to form the sarcosinate amido acid, whereby M is hydrogen in formula (IA).

专利号:EP-0719248-A1
优先权日:1993-09-14
标 题 :Synthesis of sarcosinate surfactants

专利号:JP-H09502716-A
优先权日:1993-03-04
标 题:Synthesis of sarcosinate surfactant