Regioselective aminolysis of various 1,2-epoxides with 1-(trimethylsilyl)alkylamines leading to an efficient preparation of the corresponding N-substituted β-aminoalcohols is reported. The reaction has been extended to the synthesis of a new class of N-alkyl-3-azetidinols.
Formation and cycloaddition of nonstabilized N-unsubstituted azomethine ylides from (2-azaallyl)stannanes and (2-azaallyl)silanes
作者:William H. Pearson、Roger B. Clark
DOI:10.1016/s0040-4039(99)00744-3
日期:1999.6
Protodestannylation or protodesilylation of (2-azaallyl)stannanes or (2-azaallyl)silanes led to the formation of nonstabilized N-unsubstituted azomethine ylides, which underwent cycloadditions with electron-poor alkenes to produce 2-alkyl- or 2,5-dialkylpyrrolidines. 1,3-Disubstituted ylides derived from the stannanes and silanes gave stereochemically complementary results; the stannanes led to trans-2