Direct Synthesis of Alkynylstannanes: ZnBr<sub>2</sub>Catalyst for the Reaction of Tributyltin Methoxide and Terminal Alkynes
作者:Kensuke Kiyokawa、Nodoka Tachikake、Makoto Yasuda、Akio Baba
DOI:10.1002/anie.201104208
日期:2011.10.24
Metal hopping: Various alkynylstannanes were synthesized by the direct reaction of Bu3SnOMe with terminal alkynes at room temperature in the presence of a ZnBr2 catalyst. Rather than acting as a Lewis acid, ZnBr2 was transmetalated with Bu3SnOMe to give Zn(OMe)2, which is key to the catalytic reaction.
金属跳跃:通过在室温下在ZnBr 2催化剂存在下,Bu 3 SnOMe与末端炔烃直接反应,合成了各种炔基锡烷。ZnBr 2不是用作路易斯酸,而是用Bu 3 SnOMe进行金属转移生成Zn(OMe)2,这对催化反应至关重要。