Thermal Elimination of Diethyldithiocarbamates and Application in the Synthesis of (±)-Ferrugine
作者:Shamim Ahmed、Luke A. Baker、Richard S. Grainger、Paolo Innocenti、Camilo E. Quevedo
DOI:10.1021/jo801652x
日期:2008.10.17
Dithiocarbamate-substituted lactams, prepared through group-transfer cyclizationreactions of carbamoylradicals, undergo a Chugaev-like thermal elimination of the dithiocarbamategroup in refluxing diphenyl ether to form alpha,beta- and/or beta,gamma-unsaturated amides, depending on the structure of the starting material. This reaction sequence was used to prepare an unsaturated [3.2.2] bridged bicyclic