Catalyst-Controlled Highly Selective Coupling and Oxygenation of Olefins: A Direct Approach to Alcohols, Ketones, and Diketones
作者:Yijin Su、Xiang Sun、Guolin Wu、Ning Jiao
DOI:10.1002/anie.201303917
日期:2013.9.9
Oxygen? That's radical! A method for the direct synthesis of substituted alcohols, ketones, and diketones through a catalyst‐controlled highly chemoselective coupling and oxygenation of olefins has been developed. The method is simple and practical, can be switched by the selection of different catalysts, and employs molecular oxygen as both an oxidant and a reagent.
Abstract A novel copper-catalyzed approach to benzils from readily available deoxybenzoins under neutral conditions using air as the oxidant has been developed. The reaction tolerates a variety of useful substituents including chloro, bromo, iodo, keto, ester, and cyano groups. A novel copper-catalyzed approach to benzils from readily available deoxybenzoins under neutral conditions using air as the
A concerted metallophotoredox catalysis has been realized for the efficient decarboxylative functionalization of α,β-unsaturated carboxylic acids with aryl iodides in the presence of perylene bisimide dye to afford 1,2-diketones.
the visible light induced simple copper(II) chloride catalyzedoxidation of diarylacetylenes to α-diketones by molecular oxygen at roomtemperature. The in situ generated copper(II)-superoxo complex is a light-absorbing species that oxidizes inert diarylacetylenes to α-diketones. In contrast to reported photochemical processes, the current oxidation protocol does not require any exogenous photocatalyst
Palladium-Catalyzed Synthesis of 1,2-Diketones from Aryl Halides and Organoaluminum Reagents Using <i>tert</i>-Butyl Isocyanide as the CO Source
作者:Bo Chen、Xiao-Feng Wu
DOI:10.1021/acs.orglett.9b04414
日期:2020.1.17
In this work, an interesting and practical procedure for the synthesis of 1,2-diketonesfrom aryl halides and organoaluminum reagents has been developed. Employing tert-butyl isocyanide as the CO source and palladium as the catalyst, the desired 1,2-diketones were isolated in good to excellent yields with good functional group tolerance. Concerning the reaction partners, besides aryl halides, both