作者:Olivier Jacquet、Nicolas D. Clément、Carolina Blanco、Marta Martinez Belmonte、Jordi Benet-Buchholz、Piet W. N. M. van Leeuwen
DOI:10.1002/ejoc.201200223
日期:2012.9
The synthesis of new enantiopure wide-bite-angle diphosphanes is described as well as their use in the palladium-catalyzed asymmetric fluorination of α-cyanoacetates. Enantiomeric excesses up to 93 % were obtained when Pd(OAc) 2 -SPANphos was used as catalyst for the fluorination of ethyl 2-cyano-2-phenylacetate with N-fluorobenzenesulfonimide (NFSI).
描述了新型对映体纯广角
二膦的合成及其在
钯催化的 α-
氰基
乙酸酯不对称
氟化中的应用。当使用 Pd(OAc) 2 -S
PANphos 作为催化剂用 N-
氟苯磺
酰亚胺 (
NFSI)
氟化 2-
氰基-2-苯基
乙酸乙酯时,获得了高达 93% 的对映体过量。