Rearrangements of organosilicon compounds I. The migratory aptitudes of various organic groups in the aluminum chloride-catalyzed rearrangement of (chloromethyl)triorganosilanes
作者:Omar W. Steward、William J. Uhl、Bruce W. Sands
DOI:10.1016/s0022-328x(00)91311-1
日期:1968.12
The migratory aptitudes of various organic groups in the aluminum chloride- catalyzed rearrangement of (chloromethyl)triorganosilanes have been determined: Me, 1.00; Et, 2.07; n-Pr, 2.97; iso-Pr, ⪡ 1.00;ClCH2, ⪡ 1.00. Migration of the organic group from silicon to carbon is facilitated by electron-release and inhibited, relative to methyl, by branching at the α-carbon. The migratory aptitudes determined
已经确定了氯化铝催化的(氯甲基)三有机硅烷的各种有机基团的迁移能力:Me,1.00; Me,1.00; Me,1.00; Me,1.00; Me,1.00。等等,2.07;n-Pr 2.97;iso-Pr约1.00; ClCH 2约1.00。电子释放促进了有机基团从硅向碳的迁移,并且相对于甲基,有机基团在α-碳上的分支被抑制了。根据涉及有机基团和氯离子的同步分子内迁移的机理,讨论了本研究中确定的和其他工作人员获得的迁徙倾向。