1,4-Palladium Shift/C(sp<sup>3</sup>)–H Activation Strategy for the Remote Construction of Five-Membered Rings
作者:Ronan Rocaboy、Olivier Baudoin
DOI:10.1021/acs.orglett.9b00187
日期:2019.3.1
functionalization of remote C–H bonds from simple precursors. In this work, we report a novel and simple Pd0-catalyzed domino reaction involving 1,4-palladium shift and C(sp3)–H activation and leading to (fused) five-membered rings. This method allowed access to a broad range of valuable arylidene γ-lactams and indanones and was applied to the formal synthesis of (−)-pyrrolam.
如图1所示,n-金属转移是一种优雅的替代方法,可以使简单前体中的远程C-H键实现功能化。在这项工作中,我们报告了一个新颖而简单的Pd 0催化的多米诺骨牌反应,涉及1,4-钯的转变和C(sp 3)-H的活化并导致(稠合的)五元环。该方法可以使用各种有价值的亚芳基γ-内酰胺和茚满酮,并被用于(-)-吡咯烷的形式合成。