Asymmetric phase-transfer alkylation catalyzed by a chiral quaternary phosphonium salt with a multiple hydrogen-bonding site
作者:Kei Manabe
DOI:10.1016/s0040-4039(98)01181-2
日期:1998.8
A chiral phosphonium salt has been synthesized as a novel phase-transfer catalyst, and used for asymmetric benzylation of t-butyl 2-oxocyclopentanecarboxylate to give the corresponding product with up to 50% ee. (C) 1998 Elsevier Science Ltd. All rights reserved.