Asymmetric Synthesis of A-240610.0 via a New Atropselective Approach for Axially Chiral Biaryls with Chirality Transfer
作者:Yi-Yin Ku、Tim Grieme、Prasad Raje、Padam Sharma、Steve A. King、Howard E. Morton
DOI:10.1021/ja0171198
日期:2002.4.1
atropselective preparation of axially chiral biaryl was developed. This process proceeded through a chirality transfer from a stereogenic center of a secondary alcohol to the stereogenic axis via regioselective intramolecular silyl group migration. This methodology allowed for the preparation of a single atropisomer 2 in good yield (85%) with high diastereoselectivity (99:1), which subsequently led
开发了一种用于轴向手性联芳基阻滞选择性制备的新方法。该过程通过区域选择性分子内甲硅烷基迁移,将手性从仲醇的立体中心转移到立体轴。这种方法允许以良好的收率 (85%) 制备具有高非对映选择性 (99:1) 的单一阻转异构体 2,随后成功开发了 A-240610.0, 1 的高效不对称合成。