Remote stereocontrol by sulfinyl groups: asymmetric alkylation of chiral 2-p-tolylsulfinyl benzyl carbanions
作者:José L. García Ruano、M. Teresa Aranda、Margarita Puente
DOI:10.1016/j.tet.2005.08.014
日期:2005.10
Alkylation reactions of the benzyllithiums derived from enantiomerically pure 2-p-tolylsulfinyl alkylbenzenes have been carried out with excellent yields and high de. A lithiation-substitution sequence, stereochemically controlled by a remote sulfoxide, accounts for the experimental results.
衍生自对映体纯的2-对甲苯基亚磺酰基烷基苯的苄基锂的烷基化反应以优异的收率和高de进行。由遥远的亚砜立体化学控制的锂化-取代序列解释了实验结果。