Regio- and Stereoselective Multicomponent Coupling Reaction of Alkynes and Dimethylzinc Involving Allylnickelacycles

[摘要]：Nickel catalyzes the multicomponent coupling reaction of vinyl epoxides, alkynes, and dimethylzinc to provide hepta-2,5-dienyl alcohols as a mixture of E- and Z-isomers in high yields. Vinylcyclopropane participates in a similar multicomponent coupling reaction to afford dimethyl alpha-(hepta-2,5-dienyl)malonates with excellent E-stereoselectivity.

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