A Novel Three-Component Reaction of Allenoates, Isocyanides, and Carboxylic Acids: Facile Synthesis of Highly Substituted Acryl Imide Derivatives
作者:Xian Huang、Feng Sha
DOI:10.1021/jo702382h
日期:2008.2.1
A novel synthesis of highly substituted acryl imide derivatives by the three-component reaction of allenoates, isocyanides, and carboxylicacids was reported, and the intramolecular cyclization reaction of allenoic acids with isocyanides was also described.
CuCl-catalyzed stereoselective conjugate addition of Grignard reagents to 2,3-allenoates
作者:Jian He、Zhan Lu、Guobi Chai、Chunling Fu、Shengming Ma
DOI:10.1016/j.tet.2012.01.027
日期:2012.3
CuCl was found to be an efficient catalyst for the conjugateaddition of 2,3-allenoates with Grignardreagents to synthesize poly-substituted β,γ-unsaturated alkenoates with high stereoselectivity in good to excellent yields. Primary, secondary, and tertiary alkyl, vinyl or phenyl Grignardreagents may all be used.
Iron-Catalyzed Highly Regio- and Stereoselective Conjugate Addition of 2,3-Allenoates with Grignard Reagents
作者:Zhan Lu、Guobi Chai、Shengming Ma
DOI:10.1021/ja075750o
日期:2007.11.28
An efficient highly regio- and stereoselective iron-catalyzed conjugate addition of 2,3-allenoates with primary or secondary alkyl, phenyl, or vinyl Grignardreagents to synthesize multi-substituted β,γ-unsaturated enoates has been reported. The in situ formed magnesium dienolate may readily react with different electrophilic reagents to construct an allylic quaternary carbon at the α-position of the
Synthesis of multi-substituted vinylsilanes via copper(<scp>i</scp>)-catalyzed hydrosilylation reactions of allenes and propiolate derivatives with silylboronates
作者:Yun-He Xu、Liu-Hai Wu、Jun Wang、Teck-Peng Loh
DOI:10.1039/c4cc01722f
日期:——
An efficient and general copper(i)-catalyzed method for the synthesis of multi-substituted vinylsilanes is reported.