An efficient general method for the preparation of N-arylmethylenepyrr
oles based on the reduction of N-acylpyrroles is reported. The reducti
on procedure described is sufficiently mild to make it applicable to a
variety of sensitive acyl and heterocyclic acyl compounds where reduc
tion results in cleavage of the C-N bond. The method can also be used
in the preparation of pyrrole derivatives containing base sensitive pr
otecting groups.