An Asymmetric Allylic Alkylation–Smiles Rearrangement–Sulfinate Addition Sequence to Construct Chiral Cyclic Sulfones
作者:Quan-Gang Wang、Qing-Qing Zhou、Jin-Gen Deng、Ying-Chun Chen
DOI:10.1021/ol402158u
日期:2013.9.20
An asymmetric allylic alkylation of Morita–Baylis–Hillman carbonates and β-keto sulfones was investigated by the catalysis of modified cinchona alkaloids, whose products underwent a Smiles rearrangement–sulfinate addition cascade to furnish highly functionalized five-membered cyclic sulfones in moderate to excellent enantioselectivity and good diastereoselectivity after treatment with DBU.
通过修饰的金鸡纳生物碱的催化作用,研究了森田-贝利斯-希尔曼碳酸盐和β-酮砜的不对称烯丙基烷基化反应,其产物经历了微笑重排-亚磺酸盐加成级联反应,以中等至优异的对映选择性提供高度官能化的五元环砜DBU处理后具有良好的非对映选择性。