Weak Coordinating Carboxylate Directed Rhodium(III)-Catalyzed C–H Activation: Switchable Decarboxylative Heck-Type and [4 + 1] Annulation Reactions with Maleimides
作者:Mahadev Sharanappa Sherikar、Kandikere Ramaiah Prabhu
DOI:10.1021/acs.orglett.9b01412
日期:2019.6.21
group assisted C–H activation with maleimides leading to novel and switchable decarboxylative Heck-type and [4 + 1] annulation products catalyzed by Rh(III) has been reported. In these reactions, solvents play a vital role in switching the selectivity. An aprotic solvent, THF, leads to the decarboxylative Heck-type product while the protic solvent, TFE, results in the [4 + 1] annulation product. The
据报道,弱配位的羧酸酯导向基团可通过马来酰亚胺辅助C–H活化,从而导致新的和可转换的脱氧Heck型和Rh(III)催化的[4 +1]环化产物。在这些反应中,溶剂在切换选择性方面起着至关重要的作用。非质子溶剂THF导致脱羧的Heck型产物,而质子溶剂TFE导致[4 +1]环化产物。该方法显示出较高的官能团耐受性。