Base‐Catalyzed Domino Reaction Between Aldoxime and
<i>N</i>
‐Chlorosuccinimide in Alcohol: One‐Pot Synthesis of Alkyl 3‐(3‐Aryl‐1,2,4‐oxadiazol‐5‐yl)propanoates
an aryl aldoxime with N-chlorosuccinimide in alcohol is described. In this reaction, initially aldoxime and N-chlorosuccinimide react to produce hydroximidoyl chloride and succinimide. The hydroximidoyl chloride and base produces nitrile oxide which undergoes [3+2] annulation with succinimide followed by ring opening reaction with the assistance of alcohol to give alkyl 3-aryl-(1,2,4-oxadiazol-5-yl)propanoates