The direct-Mannich reaction of ketones 1, aldehydes 2, and anilines 3 was studied using catalytic amount of transition-metal complexes. The trivalentiridiumcomplex, [IrCl2(H)(cod)]2, catalyzed th...
Enol Esters: Versatile Substrates for Mannich-Type Multicomponent Reactions
作者:Nicolas Isambert、Montse Cruz、María José Arévalo、Elena Gómez、Rodolfo Lavilla
DOI:10.1021/ol701717z
日期:2007.10.1
The interaction of cyclic enol esters with diversely substituted anilines and ethyl glyoxalate yields, under Sc(OTf)3 catalysis, disubstituted N-aryl lactams in a multicomponent reaction. The protocol allows access to the trans stereoisomers after an epimerization of the initial mixture in which the cis isomers predominate. Vinyl acetate yields quinoline derivatives, whereas isopropenyl acetate leads