The first example of the thermal intramolecular cyclization of N-[bis(trimethylsilyl)methyl]-1-aza-1,3-dienes to give 5-trimethylsilyl-Δ2-pyrrolines is reported; two straightforward and highly Stereoselective routes to 3,4-disubstituted-5-trimethylsilyl-Δ1pyrrolines and 3,4-disubstituted-2-trimethylsilylpyrrolidines are also described.
报道了 N-[双(三甲基甲
硅烷基)甲基]-1-氮杂-1,3-二烯热分子内环化生成 5-三甲基甲
硅烷基-Δ2-
吡咯啉的第一个例子;还描述了两种直接且高度立体选择性的3,4-二取代-5-三甲基甲
硅烷基-Δ1
吡咯啉和3,4-二取代-2-三甲基甲
硅烷基
吡咯烷路线。