About the stereoselectivity control in reactions of chiral ortho-sulfinyl benzyl carbanions with aldehydes
作者:José L Garcı́a Ruano、M.Teresa Aranda、José M Aguirre
DOI:10.1016/j.tet.2004.04.051
日期:2004.6
compounds, anti-3 and syn-4, epimers at hydroxylic carbon, easily separated by chromatography and desulfinylated into enantiomerically pure 1-alkyl (or aryl)-2-phenyl-1-propanols. The observed stereoselectivity at C(1) and C(2) is analyzed to the light of the steric and electronic effects of the substituents.
从2-导出的benzyllithium脂族和芳族醛的反应p主要两种化合物的-tolylsulfinyl乙苯的产率的混合物,抗- 3和SYN - 4,在羟基差向异构体碳,容易通过色谱法分离,并desulfinylated到对映体纯的1-烷基(或芳基)-2-苯基-1-丙醇。根据取代基的空间和电子效应,分析了在C(1)和C(2)处观察到的立体选择性。