ChemInform Abstract: (2 + 2 + 2)Cycloaddition Reaction of 1‐Methylpyrrole with Diethyl Azodicarboxylate.

Abstract

076ChemInform Abstract The reaction of 1-methylpyrrole (I) with diethyl azodicarboxylate (II) in a dried ether yields the two Michael type adducts (III) and (IV), together with a small amount of the dihydrodipyrrolopyridazine derivative (V).