Heterocyclic synthesis via a tandem aza-Wittig reaction/heterocumulene-mediated annulation reaction. New methodology for the preparation of quinazoline derivatives.
作者:Pedro Molina、Mateo Alajarín、Angel Vidal
DOI:10.1016/s0040-4039(00)82131-0
日期:1988.1
The aza-Wittig reaction of iminophosphoranes derived fromN-substituted o-azidobenzamides or 2-(o-azido) phenyl benzimidazolewith isocyanates, carbon dioxide or carbon disulphide, lead tofunctionalized 4(3H)-quinazolinones and benzimidazo [1,2-c]quinazolines respectively.