74687-23-3Relevant academic research and scientific papers
Lipase-catalyzed enantioselective reaction of amines with carboxylic acids under reduced pressure in non-solvent system and in ionic liquids
Irimescu, Roxana,Kato, Katsuya
, p. 523 - 525 (2004)
Lipase-catalyzed enantioselective acylation of 1-phenylethylamine and 2-phenyl-1-propylamine was performed by reacting the amines with carboxylic acids in a non-solvent system or in ionic liquids as reaction media. The reaction equilibrium was shifted toward amide synthesis by the removal of formed water under reduced pressure.
Highly selective enzymatic kinetic resolution of primary amines at 80°C: A comparative study of carboxylic acids and their ethyl esters as acyl donors
Nechab, Malek,Azzi, Nadia,Vanthuyne, Nicolas,Bertrand, Michele,Gastaldi, Stephane,Gil, Gerard
, p. 6918 - 6923 (2008/02/11)
(Chemical Equation Presented) Optimization of the kinetic resolution of 2-amino-4-phenyl-butane was achieved at 80°C using CAL-B-catalyzed aminolysis of carboxylic acids and their ethyl esters. The reactions carried out with long chain esters and the corresponding acids as acyl donors proceeded with remarkably high enantioselectivity. The use of carboxylic acids as acylating agents led to a marked acceleration of the reaction rate compared to their ester counterparts. Laurie acid led to enantiomeric excesses superior to 99.5% for both the remaining amine and the corresponding lauramide at 50% conversion (reached in 3 h). These optimized conditions were applied to the resolution of a series of aliphatic and benzylic amines.
