Synthesis of Symmetric meso-H-Dipyrrin Hydrobromides from 2-Formylpyrroles
作者:Alison Thompson、Kate-lyn Lund
DOI:10.1055/s-0033-1341066
日期:——
The reaction of 2-formylpyrroles in acidic methanol gives the corresponding symmetric, meso-H-4,6-dipyrrin hydrobromides. This convenient strategy involves initial deformylation under the acidic conditions, followed by immediate in situ reaction of the resulting alpha-free pyrrole with the remaining 2-formylpyrrole in solution to give the dipyrrin hydrobromide salt in good yield.