Activated pyrroles from pyridazines: nitrogen extrusion by electroreduction
摘要:
The bielectronic electrochemical reduction of pyridazines, substituted by electron-withdrawing groups, leads to their corresponding 1,2-dihydro derivatives. Depending on the nature of the ring substitution, these intermediates can either rearrange into 1,4-dihydropyridazine isomers or be further electrochemically reduced into activated pyrroles. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.