The synthesis of enantiopure chiral boron dipyrromethenes (BODIPYs) is of importance due the intrinsic properties of BODIPYs as fluorophores that could be used as probes for molecular sensing. The present study reports an asymmetric organocatalytic cascade reaction of meso-chloromethyl BODIPY derivatives with α,β-unsaturatedaldehydes catalyzed by a chiral secondary amine. The corresponding BODIPY-derived
Direct Vilsmeier-Haack Chloroacetylation of Pyrroles
作者:Piero Dalla Croce、Concetta La Rosa、Alberto Ritieni
DOI:10.1055/s-1989-27396
日期:——
Reaction of pyrroles with N,N-dimethyl-2-chloroacetamide in the presence of phosphorus oxychloride leads to a mixture of 2- and 3-chloroacetylpyrroles, which can be separated by chromatography.