Oxidative Alkylation of 1,3-Diarylpropenes using O<sub>2</sub> catalysed by 2,3-dichloro-5,6-dicyano-benzoquinone and <i>N-</i>hydroxyphthalimide
作者:Dongping Cheng、Xinyi Ye、Wei Cui、Ruirui Sun、Jizhong Yan
DOI:10.3184/174751912x13527292608404
日期:2012.12
A simple oxidative alkylation of 1,3-diarylpropenes with 1,3-dicarbonyl compounds is reported with O2 catalysed by a mixture of 2,3-dichloro-5,6-dicyano-benzoquinone, N-hydroxyphthalimide, CuBr and NiCl2.
Gold- and silver-catalyzed allylic alkylation of 1,3-dicarbonyl compounds with allylic alcohols
作者:Prasath Kothandaraman、Weidong Rao、Xiaoxiang Zhang、Philip Wai Hong Chan
DOI:10.1016/j.tet.2008.11.102
日期:2009.2
A highly efficient gold- and silver-catalyzed allylicalkylation of 1,3-dicarbonyl compounds with allylic alcohols has been developed. The reaction was shown to proceed expediently for a wide variety of 1,3-dicarbonyl compounds and allylic alcohols, including 1° and terminal ones, under very mild conditions at room temperature in good to excellent yields (55–96%).
Iodine-catalyzed allylation of 1,3-dicarbonyl compounds with allylic alcohols at room temperature
作者:Weidong Rao、Adeline Hui Ling Tay、Pei Jing Goh、Jessica Mun Ling Choy、Justin Kaijie Ke、Philip Wai Hong Chan
DOI:10.1016/j.tetlet.2007.11.005
日期:2008.1
A highly efficient iodine-catalyzed allylation of 1,3-dicarbonyl compounds with a wide variety of allylic alcohols has been developed. The reaction is operationally straightforward and proceeds under very mild conditions at room temperature in good to excellent yields (up to 99%) and regioselectivity. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of Densely Substituted α,β,γ,δ-Dienones via the Pd<sup>II</sup>-Catalyzed Allylation, H-Migration, and Aerobic Oxidative δ-Hydride Elimination Cascade
作者:Feng-Quan Yuan、Fu-She Han
DOI:10.1021/ol203444g
日期:2012.3.2
A novel protocol for the highly stereoselective synthesis of E,E-α,β,γ,δ-unsaturated dicarbonyl compounds is presented. Starting from the readily available allylic alcohols and 1,3-diketones, an array of E,E-α,β,γ,δ-dienones can be efficiently synthesized in high yields via Pd-catalyzed dehydrative allylation, H-migration, and aerobic oxidative δ-hydride elimination cascade. In addition to the novel