Stereoselective Synthesis of (Z)-1-Alkylseleno-1-alkenes by Ni-Catalyzed Coupling Reaction of (Z)-Dialkylselenoethenes with Organozinc Halides
作者:Xian Huang、Ai Ming Sun
DOI:10.1080/00397919708004142
日期:1997.8
(Z)-Dialkylselenoethenes 2, prepared conveniently from the hydrozirconation of dialkylselenoacetylenes 1 with Cp2Zr (H) Cl in THF followed by protonolysis, react readily at − 10°C in THF with organozinchalides in the presence of a catalytic amount of NiCl2 (dppe) to give (Z)-1-alkylseleno-1-alkenes 3 with retention of the configuration.