Claisen rearrangement of amide oxime–dimethyl acetylenedicarboxylate adducts as a route to imidazolinones

Abstract
Pyrolysis of the vinyl ether adducts obtained by condensation of arylamide oximes and dimethyl acetylene dicarboxylate affords a new class of substituted imidazolinones, probably by a Claisen-type rearrangement with subsequent cyclisation.

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