Copper-Catalyzed Silacarboxylation of Internal Alkynes by Employing Carbon Dioxide and Silylboranes
作者:Tetsuaki Fujihara、Yosuke Tani、Kazuhiko Semba、Jun Terao、Yasushi Tsuji
DOI:10.1002/anie.201207148
日期:2012.11.12
Silalactones: The copper‐catalyzed reaction of internal alkynes with (dimethylphenylsilyl)pinacolborane (Me2PhSi‐B(pin)) as the silicon source and CO2 at atmospheric pressure afforded silalactones selectively in good to high yields. The silalactones can be used as substrates for the Hiyama cross‐coupling reaction as demonstrated for one substrate.
硅内酯:内部炔烃以(二甲基苯基甲硅烷基)频哪烷硼烷(Me 2 PhSi -B(pin))作为硅源和CO 2在大气压下的铜催化反应提供了高至高收率的选择性硅内酯。硅内酯可用作Hiyama交叉偶联反应的底物,如一种底物所示。