Alkynyliodonium Salts in Organic Synthesis. Preparation of Annelated Dihydropyrroles by Cascade Addition/Bicyclization of Dienyltosylamide Anions with Phenyl(propynyl)iodonium Triflate
作者:Ken S. Feldman、David. A. Mareska
DOI:10.1021/jo9907538
日期:1999.7.1
The addition of simple pentadienyltosylamide derivatives to the two-carbon electrophile phenyl(propynyl)iodonium triflate initiates a sequence of transformations that furnishes complex, highly functionalized cyclopentenannelated dihydropyrrole products in moderate yields with complete stereoselection. This sequence demonstrates that diyls resulting from homolytic scission of alkylidene carbene-alkene
Fused bicyclic vinylcyclopropanes from intramolecular alkylidene carbene-alkene additions
作者:Ken S. Feldman、David A. Mareska
DOI:10.1016/s0040-4039(98)00956-3
日期:1998.7
A double bond migration driven by the high strain energy of endocyclic methylenecyclopropane-containing fusedbicyclic systems is proposed to explain the formation of azabicyclo[3.1.0]hexanes from the intramolecular addition of alkylidene carbenes to alkenes.