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
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R. Smalley | K. Hemming | P. Kennewell | R. Westwood | A. D. Redhouse | J. Thompson | A.‐B. N. Luheshi