Vinyldimethylphenylsilanes as Safety Catch Silanols in Fluoride-Free Palladium-Catalyzed Cross-Coupling Reactions
作者:James C. Anderson、Rachel H. Munday
DOI:10.1021/jo048746t
日期:2004.12.1
A series of five structurally diverse vinyldimethylphenylsilanes have been shown to undergo a fluoride-free one-pot palladium-catalyzed cross-coupling reaction with phenyl iodide to give ipso coupled products in 62−86% yield. The limitations of this present protocol lie in the activation of Si−Ph vs protodesilylation by KOTMS/18-C-6, which seems sensitive to the sterics of cis substituents, but not
一系列五个结构多样vinyldimethylphenylsilanes已经显示出经历与苯基碘以得到不含氟化物的一锅煮的钯催化交叉偶联反应本位偶联产物在62-86%的产率。本协议的局限性在于KOTMS / 18-C-6对Si-Ph的活化和原甲硅烷基化的活化,这似乎对顺式取代基的空间敏感,但对双取代基的空间则不敏感。