Palladium-catalyzed alkenylation and alkynylation of ortho-C(sp2)-H bonds of benzylamine picolinamides

Org Lett. 2012 Jun 15;14(12):2948-51. doi: 10.1021/ol301214u. Epub 2012 Jun 6.

Abstract

An efficient functionalization of ortho-C(sp(2))-H bonds of picolinamide (PA)-protected benzylamine substrates with a range of vinyl iodides as well as acetylenic bromide is reported. ortho-Phenyl benzoic acid (oPBA) acts as an effective promoter in this reaction system. This method provides a practical strategy to access highly functionalized benzylamine compounds for organic synthesis.