A Straightforward and Practical Approach to Chiral Inducer: (2R,3R)-1,4-Dimethoxy-1,1,4,4-tetraphenylbutane-2,3-diol
作者:Jin-Sheng Xie、Xiao-Yun Hu、Zi-Xing Shan、Zhong-Qiang Zhou
DOI:10.1071/ch14505
日期:——
A straightforward and practical access to chiral inducer (2R,3R)-1,4- dimethoxyl-1,1,4,4-tetraphenyl-2,3-diol has been developed. It is based on highly regioselective 2,3-cyclosulfitation of (2R,3R)-1,1,4,4-tetraphenyl-butanetetraol, in which selective protection of the secondary hydroxyls and chlorination of the tertiary hydroxyls of (2R,3R)-1,1,4,4-tetraphenyl-butanetetraol are accomplished via one
已经开发了一种直接实用的手性诱导剂(2 R,3 R)-1,4-二甲氧基-1,1,4,4-四苯基-2,3-二醇。它基于(2 R,3 R)-1,1,4,4-四苯基丁烷四醇的高度区域选择性的2,3-环亚硫酸化作用,其中(2 R的仲羟基的选择性保护和叔羟基的氯化通过一个步骤完成,3 R)-1,1,4,4-四苯基-丁烷四醇。在制备中,使用甲醇作为甲基化试剂,并且使用普通碱液裂解保护基。它可能是标题化合物最直接,最实用的合成方法之一。