title: Polystyrenesulfonate-catalyzed synthesis of novel pyrroles through Paal-Knorr reaction.
abstract: BACKGROUND
  The classical Paal-Knorr reaction is one of the simplest and most economical methods for the synthesis of biologically important and pharmacologically useful pyrrole derivatives.
  
  
  RESULTS
  Polystyrenesulfonate-catalyzed simple synthesis of substituted pyrroles following Paal-Knorr reaction has been accomplished with an excellent yield in aqueous solution. This method also produces pyrroles with multicyclic polyaromatic amines.
  
  
  CONCLUSIONS
  The present procedure for the synthesis of N-polyaromatic substituted pyrroles will find application in the synthesis of potent biologically active molecules.
authors.affiliation: Department of Chemistry, The University of Texas-Pan American, 1201 West University Drive, Edinburg, TX 78539, USA. banik@utpa.edu.
authors.forename: Mandira
authors.initials: M
authors.lastname: Banik
authors.forename: Bianca
authors.initials: B
authors.lastname: Ramirez
authors.forename: Ashwini
authors.initials: A
authors.lastname: Reddy
authors.forename: Debasish
authors.initials: D
authors.lastname: Bandyopadhyay
authors.forename: Bimal K
authors.initials: BK
authors.lastname: Banik