High-Activity Iron Catalysts for the Hydrogenation of Hindered, Unfunctionalized Alkenes.

ABSTRACT: The activity of aryl-substituted bis(imino)pyridine and bis(arylimidazol-2-ylidene)pyridine iron dinitrogen complexes has been evaluated in a series of catalytic olefin hydrogenation reactions. In general, more electron donating chelates with smaller 2,6-aryl substituents produce more active iron hydrogenation catalysts. Establishment of this structure-activity relationship has produced base metal catalysts that exhibit high turnover frequencies for the hydrogenation of unfunctionalized, tri- and tetrasubstituted alkenes, one of the most challenging substrate classes for homogenous hydrogenation catalysts.

SUBMITTER: Yu RP 

PROVIDER: S-EPMC4517477 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature