Indolizines. 5. Preparation and structural assignments of azaindolizinols
作者:Charles H. Weidner、Frank M. Michaels、Douglas J. Beltman、Cheryl J. Montgomery、Donald H. Wadsworth、Brian T. Briggs、Matthew L. Picone
DOI:10.1021/jo00019a024
日期:1991.9
Diphenylcyclopropenone reacts smoothly with a variety of aromatic N-heterocycles to provide aza- and benzazaindolizinols. Although known in the literature, these compounds had been assigned incorrect structures. The preparation and physical properties of a number of derivatives, along with unequivocal assignments of structure based on a variety of NMR techniques, is described herein.