Conjugated carbodiimides: Preparation and thermal cyclization to 2-aminopyridine derivatives
作者:Pedro Molina、Pilar M. Fresneda、Pascual Alarcón
DOI:10.1016/s0040-4039(00)80101-x
日期:1988.1
The aza-Wittig reaction of iminophosphorane () with isocyanates leads to conjugated carbodiimides which undergo electrocyclic ring-closure to give 2-aminopyridinederivatives.