Facile generation of dialkylaminyl radicals from N-hydroxypyridine-2-thione carbamates. Application in kinetic studies of small ring cycloalkylaminyl radical ring openings
作者:Martin Newcomb、Park Seung-Un、Jere Kaplan、Donald J. Marquardt
DOI:10.1016/s0040-4039(01)80910-2
日期:1985.1
The preparation of N-hydroxypyridine-2-thione carbamates and the formation of dialkylaminyl radicalsfrom these species are described and the application of this methodology in kineticstudies of aminyl radical rearrangements is demonstrated.
A new addition reaction of zinc-alkynyl ides to N-acyl and N-phosphinoyl iminiums is reported. These can be prepared in situ from imines with acid halides in the presence of a Zn-acetylide. The reaction is general with regard to imine, alkyne, and acid halides, allowing access to a large number of differentially protected propargylic amines.
Catalytic Three-Component Coupling of Alkynes, Imines, and Organoboron Reagents
作者:Sejal J. Patel、Timothy F. Jamison
DOI:10.1002/anie.200390349
日期:2003.3.28
Diastereofacial selectivity in the reaction of allylic organometallic compounds with imines. Stereoelectronic effect of imine group