C2-Alkylation and Alkenylation of Indoles Catalyzed by a Low-Valent Cobalt Complex in the Absence of Reductant
作者:Brendan J. Fallon、Etienne Derat、Muriel Amatore、Corinne Aubert、Fabrice Chemla、Franck Ferreira、Alejandro Perez-Luna、Marc Petit
DOI:10.1021/acs.orglett.6b00939
日期:2016.5.6
Herein an extremely versatile, well-defined, low-valent cobalt catalyst [Co(PMe3)4] capable of intermolecular and intramolecular imine-directed C2-alkylation and alkenylation of indoles is reported. The reaction proceeds in the absence of reducing agents or additives, affording a range of substituted indoles and dihydropyrroloindoles in high yields and regioselectivities. With the aid of deuterium