Highly regio- and stereoselective palladium-catalyzed allylic carbonate amination. A practical route to dehydro-β-amino esters
作者:Giuliana Cardillo、Luca Gentilucci、Elisa Mosconi、Alessandra Tolomelli、Stefano Troisi、Eusebio Juaristi
DOI:10.1016/j.tet.2010.05.022
日期:2010.7
enantiopure allylic carbonates. The substitution with amines for C–N bond formation on these substrates bearing substituents on the Cα, Cβ, and Cγ position of the allylic system has received, until now, little attention. The reactions, carried out under palladium-catalyzed conditions, resulted in good yields and complete regioselectivity. Moreover, starting from enantiopure carbonates, complete retention
从容易获得的对映纯烯丙基碳酸酯开始,开发了一种实用的,高对映选择性的合成脱氢-β-氨基酸的方法。在胺基系统的Cα,Cβ和Cγ位置带有取代基的这些底物上,用胺取代CN形成N键,直到现在仍很少受到关注。在钯催化的条件下进行的反应导致良好的产率和完全的区域选择性。此外,从对映体纯碳酸盐开始,可以观察到构型的完全保留,得到对映体纯烯丙基胺。