A.‐B. N. Luheshi

Heterocycles by intramolecular aza-Wittig reactions of iminophosphoranes obtained from 2-azidobenzoyl- and 2-azidobenzylidene derivatives

R. Smalley, S. M. Salem, P. Kennewell, 1990 .

1,3-dipolar cycloadditions of 2-ethoxy- and 2-(ethylthio)-1-azetines with nitrile oxides, nitrile ylides and nitrilimines : an unexpected 1,2,4-triazole formation

R. Smalley, K. Hemming, P. Kennewell, 1993 .