Stereocontrolled Approach to Phenyl Cyclitols from (<i>SR</i>)-[(<i>p</i>-Tolylsulfinyl)methyl]-<i>p</i>-quinol
作者:Estíbaliz Merino、Rosanne P. A. Melo、Montserrat Ortega-Guerra、María Ribagorda、M. Carmen Carreño
DOI:10.1021/jo900109p
日期:2009.4.3
Reactions of enantiopure (SR)-[(p-tolylsulfinyl)methyl]-p-quinol with ArAlMe2 reagents allowed a highly diastereoselective 1,4-addition of the aryl group with an efficient desymmetrization of the prochiral cyclohexadienone moiety. The asymmetric synthesis of phenyl-substituted polyoxygenated cyclohexane derivatives was achieved by combining this reaction with a stereoselective reduction and elimination
对映纯(SR)-[(对甲苯磺酰亚胺基)甲基]-对苯二酚与ArAlMe 2试剂的反应可实现芳基的高度非对映选择性1,4-加成以及前手性环己二烯酮部分的高效去对称化。通过将该反应与氧化成砜后的立体选择性还原和消除β-羟基亚砜结合,以回收羰基并进行立体选择性环氧化,可以实现苯基取代的多氧化环己烷衍生物的不对称合成。