Supported ionic liquids in Burkholderia cepacia lipase-catalyzed asymmetric acylation
作者:Piia Hara、Jyri-Pekka Mikkola、Dmitry Yu. Murzin、Liisa T. Kanerva
DOI:10.1016/j.molcatb.2010.07.018
日期:2010.11
Lipase PS from Burkholderia cepacia was successfully immobilized on Kynol(TM) ACC 507-15 active carbon cloth with and without ionic liquids as SILE catalysts. Activity, enantioselectivity and reuse of the catalysts were evaluated in the acylation of 1-phenylethanol with vinyl acetate in toluene and in hexane over the temperature range 25-60 degrees C. The presence of [EMIM][NTf2] clearly stabilized the enzyme against inactivation and preserved enantioselectivity in reuse in a process which is affected by the nature of the IL, solvent and substrate structure. (C) 2010 Elsevier B.V. All rights reserved.