作者:M. Bellassoued、J. Aatar、M. Bouzid、M. Damak
DOI:10.1080/10426500903348039
日期:2010.8.25
Aldehydes are converted into (E)-α,β-unsaturated methyl ketones in good yield and with a high E stereoselectivity using α,α-bis(trimethylsilyl) N-tert-butyl acetimine 3. The reaction was mediated by a catalytic amount of tetrabutylammonium fluoride (TBAF) under mild conditions. The disilylated reagent 3 is easily generated from N-tert-butylacetimine, lithium diisopropylamide (LDA), and chlorotrimethylsilane
使用 α,α-双(三甲基甲硅烷基)N-叔丁基乙亚胺 3,醛以良好的收率和高 E 立体选择性转化为 (E)-α,β-不饱和甲基酮。该反应由催化量的四丁基氟化铵 (TBAF) 在温和条件下。二甲硅烷基化试剂 3 很容易由 N-叔丁基乙亚胺、二异丙基氨基锂 (LDA) 和氯三甲基硅烷生成。讨论了反应机理。