Base-Free, Acceptorless, and Chemoselective Alcohol

Mar 22, 2013 - Several groups have previously reported homogeneous base-free catalytic oxidation of diols to lactones using a hydrogen acceptor (i.e.,...
0 downloads 10 Views 554KB Size
Communication pubs.acs.org/Organometallics

Base-Free, Acceptorless, and Chemoselective Alcohol Dehydrogenation Catalyzed by an Amide-Derived NNNRuthenium(II) Hydride Complex Kuei-Nin T. Tseng, Jeff W. Kampf, and Nathaniel K. Szymczak* Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States S Supporting Information *

ABSTRACT: The bmpi (1,3-bis(6′-methyl-2′-pyridylimino)isoindoline) pincer Ru(II) hydride complex catalyzes base-free, acceptorless, and chemoselective dehydrogenation of alcohols with liberation of dihydrogen under moderate (200 °C). Thus, complex 2 is only the second reported example of catalytic ADC reactivity of diols to lactones that does not require an added hydrogen acceptor and base and occurs under moderate (