Indolinylmethanol catalyzed enantioselective Reformatsky reaction with ketones
作者:Ning Lin、Miao-Miao Chen、Ren-Shi Luo、Yan-Qiu Deng、Gui Lu
DOI:10.1016/j.tetasy.2010.11.004
日期:2010.12
A series of chiral indolinylmethanol ligands have been applied for the first time in the asymmetric Reformatskyreaction of an α-bromoester with ketones. In the presence of NiBr2 and zinc powder, up to 75% yield and 87% ee were obtained for a variety of aromatic and aliphatic ketones. The use of Ni(acac)2 resulted in 96% ee although the corresponding yield was low. This process provided a convenient