Synthesis of Nitrogen Heterocycles using Tandem Radical Cyclisation of Imines
作者:W Bowman
DOI:10.1016/00404-0399(50)1030l-
日期:1995.7.31
Cascade radical cyclisations of imines
作者:W.Russell Bowman、Peter T. Stephenson、Adrian R. Young
DOI:10.1016/0040-4020(96)00636-9
日期:1996.8
Cascade radical reactions, initiated by cyclisation of sp3 carbon-centred radicals onto the C-atom of imines, have been used to develop a new protocol for the synthesis of a range of nitrogen heterocycles. The C-centred radical intermediates were generated from benzeneselenyl precursors using Bu3SnH. The aminyl radicals generated by cyclisation onto imines undergo further 5- or 6-exo cyclisation with