Patent ID: 6515153
Filing Date: 2003-02-04
Classification: C07C

Abstract:
A process for preparing an amido ester having the formula:R1â€”COâ€”NR3â€”R2â€”COOH orR1â€”NR3â€”COâ€”R2â€”COOH wherein R1 is C1-C12 linear or branched alkyl, C6-C14 aryl, C7-C14 alkyl substituted aryl unit; R2 is C1-C14 alkylene, C6-C14 arylene, C7-C14 alkyl substituted arylene; R3 is hydrogen, C1-C10 alkyl, C6-C10 aryl, C7-C10 alkyl substituted aryl, said process comprising the steps of:a) charging to a spinning disc reactor a carboxylic acid having the formula: R1â€”COOH; â€ƒwith an amine having the formula: HNR3â€”R2â€”COOH; â€ƒor a carboxylic acid having the formula: HOOCâ€”R2â€”COOH; â€ƒwith an amine having the formula: R1â€”NR3H; â€ƒto form an amido ester; and b) isolating said amido ester.