Highly efficient and enantioselective enzymatic acylation of amines in aqueous medium
作者:Dorel T Guranda、Luuk M van Langen、Fred van Rantwijk、Roger A Sheldon、Vytas K Švedas
DOI:10.1016/s0957-4166(01)00263-4
日期:2001.7
unique catalytic properties, stability and enantioselectivity of the relatively unknown penicillin acylase from Alcaligenesfaecalis has been developed for the effective and enantioselective acylation of amines in aqueousmedium. In contrast to lipase-catalyzed acylations in organic solvents, the penicillin acylase-catalyzed acylation of amines in aqueous solution is a rapid and chemoselective process
Thermodynamics of phenylacetamides synthesis: Linear free energy relationship with the pK of amine
作者:Dorel T. Guranda、Gennadij A. Ushakov、Petr G. Yolkin、Vytas K. Švedas
DOI:10.1016/j.molcatb.2011.08.013
日期:2012.1
The effective equilibrium constants K′CK′C expressed through the total concentrations of the reagents for the synthesis of N-phenylacetyl-derivatives in aqueous medium from phenylaceticacid and various primary amino compounds have been determined with penicillin acylase as a catalyst. Broad specificity of penicillin acylase (EC 3.5.1.11) to amino components made possible to investigate the acylation