Nitroso-Diels-Alder cycloaddition of various dienes combined with a straightforward sequence including N-O bond cleavage and oxidation reaction of the resulting (Z)-γ-aminoenone (or enal) leads to polysubstituted pyrrolic units.
Stereoselective, Intermolecular Dienyltosylamide/Alkynyliodonium Salt Additions in the Synthesis of Fused Bicyclic Dihydropyrrole Derivatives
作者:Ken S. Feldman、David A. Mareska
DOI:10.1021/ja980100t
日期:1998.4.1
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