Palladium-Catalyzed Regio-, Enantio-, and Diastereoselective Asymmetric [3 + 2] Cycloaddition Reactions: Synthesis of Chiral Cyclopentyl Phosphonates
作者:Barry M. Trost、Anand H. Shinde、Youliang Wang、Zhijun Zuo、Chang Min
DOI:10.1021/acscatal.9b05073
日期:2020.2.7
The palladium-catalyzed unified approach using in situ-generated Phospha-TMM species to synthesize a diverse array of chiral organophosphorus containing carbo- and heterocyclic compounds in a highly regio-, diastereo- (>20:1 dr), and enantioselective (>99% ee) fashion is being disclosed. The present protocol reveals the potential of the deprotonative phospha-TMM strategy for the synthesis of challenging
钯催化的统一方法,使用原位产生的Phospha-TMM物质合成具有高区域,非对映体(> 20:1 dr)和对映选择性(> 99)的多种手性有机磷,其中含有碳和杂环化合物%ee)的时尚正在被披露。本协议揭示了去质子化的phospha-TMM策略的潜力,具有挑战性的五元碳环和杂环,尤其是那些具有螺环实体和季不对称立体中心的杂环。事实证明,对于本转化中所需的反应性,选择健壮的手性二酰胺基亚氨基磷酸酯配体非常关键。此外,通过多种转化,例如还原,氧化和烷基化,证明了产物的合成效用。