Electro‐mediated PhotoRedox Catalysis for Selective C(sp
<sup>3</sup>
)–O Cleavages of Phosphinated Alcohols to Carbanions
作者:Xianhai Tian、Tobias A. Karl、Sebastian Reiter、Shahboz Yakubov、Regina Vivie‐Riedle、Burkhard König、Joshua P. Barham
DOI:10.1002/anie.202105895
日期:2021.9.13
As well as deoxygenations, olefinations are reported which are E-selective and can be made Z-selective in a tandem reduction/photosensitization process where both steps are photoelectrochemically promoted. Spectroscopy, computation, and catalyst structural variations reveal that our new naphthalene monoimide-type catalyst allows for an intimate dispersive precomplexation of its radical anion form with
Product stereospecificity in the microbial reduction of .alpha.-haloaryl ketones
作者:Mitsuru Imuta、Kenichi Kawai、Herman Ziffer
DOI:10.1021/jo01304a044
日期:1980.8
An expedient synthesis of poly-substituted pyrroles from γ-ketonitriles via indium-mediated Barbier reaction strategy
作者:Sung Hwan Kim、Se Hee Kim、Ka Young Lee、Jae Nyoung Kim
DOI:10.1016/j.tetlet.2009.07.140
日期:2009.10
We developed an efficient synthetic strategy of poly-substituted pyrroles via an indium-mediated Barbier type allylation from gamma-ketonitriles. Initial attack of allylindium species occurred at the nitrile group selectively to form the enamine intermediate, which reacted with the ketone group intramolecularly to furnish the pyrroles. (C) 2009 Elsevier Ltd. All rights reserved.
Unusual redox behavior in the photoinduced electron-transfer reactions of amino ketones
作者:William R. Bergmark、Charlotte DeWan、David G. Whitten
DOI:10.1021/ja00049a010
日期:1992.11
Irradiation of a wet benzene solution of 1,2-diphenyl-2-piperidino-1-ethanone and 9,10-dicyanoanthracene leads to the formation of benzil and deoxybenzoin. We have interpreted these products as arising from deprotonation leading to net oxidation coupled with reductive elimination. The latter pathway is noteworthy in that we show reductive elimination of an electron donor can be a chief consequence of photochemical single electron transfer (SET) quenching.
Simonov,D.A. et al., Journal of Organic Chemistry USSR (English Translation), 1978, vol. 14, p. 1947 - 1950