Stereo- and regiospecific formation of a highly functionalized bridgehead tricyclic sultam
作者:Daniel D Long、Russell Dahl、Catherine Jolivet、Will J Marshall、Andreas P Termin
DOI:10.1016/s0040-4039(02)00560-9
日期:2002.6
Tethering of a nitrone moiety to an olefin containing endocyclic sultam results in high yielding spontaneous intramolecular nitrone–olefin cycloaddition. The reaction proceeds with complete regio- and stereospecific control to establish three new chiral centers in the tricyclic products which incorporate an unusual bridgehead sultam motif. A transition state model for the remarkable regio- and stereochemistry
Structural elucidation and complete assignment of a novel class of sulfonamides: bridgehead tricyclic sultams
作者:Catherine Jolivet、Daniel D. Long、Russel S. Dahl、Andreas P. Termin
DOI:10.1002/mrc.1006
日期:2002.4
both an exocyclic ketone function and an internal olefin underwent reaction with a variety of hydroxylamines to effect an intramolecular nitrone–olefin cycloaddition to afford a new class of compounds suitable for derivatization by high‐throughput medicinal chemistry. Structural elucidation via complete assignment of the 1H and 13CNMR spectra of this new class of compounds was achieved using gradient‐COSY