Intramolecular insertion of cyclopropylidenes into N–H bonds and into C–H bonds adjacent to nitrogen
作者:Mark S. Baird、Arun C. Kaura
DOI:10.1039/c39760000356
日期:——
Reaction of the amino-methyl-(V) and amino-ethyl-dibromocyclopropanes (IX, R3= H) with methyllithium leads to 3- and 2-azabicyclo[3.1.0]hexanes (VI) and (X) respectively in competition with the formation of allenes.
Synthesis and transformations of metallacycles 39. Zr-Catalyzed cyclomagnesiation of N-containing allenes
作者:V. A. D’yakonov、A. A. Makarov、E. Kh. Makarova、T. V. Tyumkina、U. M. Dzhemilev
DOI:10.1007/s11172-012-0022-9
日期:2012.1
Catalytic cyclomagnesiation of N-containing 1,2-dienes with Et2Mg in the presence of the Zr-based complexes affords 2-(aminoalkylidene)magnesacyclopentanes in 68–84% yields.