NOVEL-APPROACH TO 1-ARYL-1H-4,1,2-BENZOXADIAZINES INVOLVING A SMILES REARRANGEMENT

Abstract

Some representatives of the title ring system have been obtained from ortho-(aryloxy)phenylhydrazonyl chlorides through a pathway involving (i) nitrile imide formation, (ii) Smiles rearrangement and (iii) intramolecular nucleophilic addition