Covalent Immobilization of <i>Pseudomonas stutzeri</i> Lipase on a Porous Polymer: An Efficient Biocatalyst for a Scalable Production of Enantiopure Benzoin Esters under Sustainable Conditions
作者:Antonio Aires-Trapote、Pilar Hoyos、Andrés R. Alcántara、Aitana Tamayo、Juan Rubio、Angel Rumbero、María J. Hernáiz
DOI:10.1021/op500326k
日期:2015.7.17
up of this KR process permitting a further rise in the catalytic efficiency. Finally, the dynamic kinetic resolution of benzoin (DKR) was carried out by the combination of the immobilized lipase and a ruthenium catalyst (Shvo’scatalyst) in 2-MeTHF, reaching conversions up to 90%, maintaining its excellent enantioselectivity during six catalytic cycles.
A chiral N-heterocyclic carbene-catalyzed benzoin condensation reaction in water has been developed, affording α-hydroxy ketones in good to high yields and high enantioselectivities. Water was proposed as a proton shuttle in the aqueous asymmetric condensation reaction.