J. Chang, Hyunik Shin
Feb 29, 2008
Citations
0
Influential Citations
13
Citations
Journal
Organic Process Research & Development
Abstract
Ethyl 4-substituted-1H-pyrrole-3-carboxylates were prepared in a one-pot manner starting from aromatic or aliphatic aldehydes via a Horner−Wadsworth−Emmons reaction and subsequent reaction with tosylmethylisocyanide (TosMIC) in the presence of sodium tert-amylate in toluene. Judicious selection of base and solvent led to the use of a single solvent, i.e., toluene, for reactions as well as for crystallization to render the one-pot process more practical and greener than the stepwise version.