Allyl-Nickel Catalysis Enables Carbonyl Dehydrogenation and Oxidative Cycloalkenylation of Ketones
作者:David Huang、Suzanne M. Szewczyk、Pengpeng Zhang、Timothy R. Newhouse
DOI:10.1021/jacs.9b02552
日期:2019.4.10
of carbonyl compounds using allyl-nickel catalysis. This development overcomes several limitations of previously reported allyl-palladium-catalyzed oxidation, and is further leveraged for the development of an oxidative cycloalkenylation reaction that provides access to bicycloalkenones with fused, bridged, and spirocyclic ring systems using unactivated ketone and alkene precursors.
Vlad, P. F.; Koltsa, M. N.; Sibirtseva, V. E., Journal of general chemistry of the USSR, 1980, vol. 50, p. 176 - 180
作者:Vlad, P. F.、Koltsa, M. N.、Sibirtseva, V. E.、Kustova, S. D.
DOI:——
日期:——
Palladium-Catalyzed α,β-Dehydrogenation of Esters and Nitriles
作者:Yifeng Chen、Justin P. Romaire、Timothy R. Newhouse
DOI:10.1021/jacs.5b02243
日期:2015.5.13
A highly practical and general palladium-catalyzed methodology for the alpha,beta-dehydrogenation of esters and nitriles is repotted. Generation of a zinc enolate or (cyanoalkyl)zinc species followed by the addition of an allyl oxidant and a palladium catalyst results in synthetically useful yields of alpha,beta-unsaturated esters, lactones, and nitriles. Preliminary mechanistic investigations are consistent with reversible beta-hydride elimination and turnover-limiting, propene-forming reductive elimination.
Preparation of Hindered Aniline CyanH and Application in the Allyl-Ni-Catalyzed α,β-Dehydrogenation of Carbonyls
作者:Alexandra K. Bodnar
DOI:10.15227/orgsyn.098.0263
日期:——
Vlad, P. F.; Koltsa, M. N.; Ungur, N. D., Journal of General Chemistry of the USSR, 1980, vol. 50, p. 180 - 183
作者:Vlad, P. F.、Koltsa, M. N.、Ungur, N. D.、Sibirtseva, V. E.、Kustova, S. D.