Negishi Coupling between α-Alkyl(aryl)thio Vinyl Zinc Chloride and α-Bromo Vinyl Ether: A Convergent Synthesis of 2-Alkoxy-3-alkyl(aryl)thiobuta-1,3-dienes<sup>1</sup>
作者:Mei Su、Ying Kang、Wensheng Yu、Zhengmao Hua、Zhendong Jin
DOI:10.1021/ol010252k
日期:2002.3.1
see text] A convergent approach for the stereoselective synthesis of 2-alkoxy-3-alkyl(aryl)thiobuta-1,3-dienes has been developed. It was found that Negishi coupling between alpha-alkyl(aryl)thio vinyl zinc chloride and alpha-bromo vinyl ether or Negishi coupling between alpha-bromo vinylsulfide and alpha-alkoxy vinyl zinc chloride provided the best yield and stereoselectivity.
Heck reaction with an acyl synthon: new coupling reaction between α-halo vinyl ether and alkene
作者:Xiaobang Gao、Wensheng Yu、Yan Mei、Zhendong Jin
DOI:10.1016/j.tetlet.2004.09.029
日期:2004.10
α-Halo vinyl ethers were successfully applied to palladium-catalyzed Heck reaction. Reactions of α-halo vinyl ether with alkenes under various Heck conditions form a new carbon–carbon bond along with a vinyl ether functionality, which can be further manipulated. This is the first synthetic methodology for the coupling of an acyl synthon with alkene employing Heck reaction.