Indium(III) Salt Promoted Intramolecular Addition of Allylsilanes to Unactivated Alkynes
作者:Katsukiyo Miura、Akira Hosomi、Naoki Fujisawa、Sayaka Toyohara
DOI:10.1055/s-2006-947348
日期:2006.8
stoichiometric or catalytic amount of a Lewis acidic indium(III) salt, allylsilanes reacted intramolecularly with unactivated terminal alkynes to give cyclized products in good to high yields. The fact that the reaction proceeded in a trans-addition mode suggests a reaction mechanism via electrophilic activation of the triple bond by the indium salt.
在化学计量或催化量的路易斯酸性铟 (III) 盐存在下,烯丙基硅烷与未活化的末端炔烃发生分子内反应,以良好或高产率得到环化产物。反应以反式加成模式进行的事实表明反应机理是通过铟盐对三键的亲电活化。