Mg-promoted reductive coupling of aromatic carbonyl compounds with trimethylsilyl chloride and bis(chlorodimethylsilyl) compounds
作者:Tetsuro Uchida、Yoshio Kita、Hirofumi Maekawa、Ikuzo Nishiguchi
DOI:10.1016/j.tet.2006.01.026
日期:2006.3
Mg-promoted reductive coupling of aromatic carbonyl compounds (1) with chlorosilanes, such as trimethylsilyl chloride (TMSCl:2), 1,2-bis(chlorodimethylsilyl)ethane (3) and 1,5-dichlorohexamethyltrisiloxane (4), in N,N-dimethylformamide (DMF) at room temperature brought about selective and facile reductive formation of both of carbon–silicon and oxygen–silicon bonds to give the corresponding α-trimethylsilylalkyl
毫克促进的芳香族羰基化合物(的还原偶联1)用氯硅烷,例如三甲基氯硅烷(的TMSCl:2),1,2-双(chlorodimethylsilyl)乙烷(3)和1,5- dichlorohexamethyltrisiloxane(4),在Ñ,室温下的N-二甲基甲酰胺(DMF)选择性且容易地还原形成碳-硅键和氧-硅键,从而生成相应的α-三甲基甲硅烷基烷基三甲基甲硅烷基醚(5)和环状硅氧烷(6),(7)分别以中等到良好的产量。可以通过从镁金属到芳族羰基化合物(1)的电子转移来引发本发明的容易的和选择性的偶联。