Synthesis 2011(17): 2833-2837  
DOI: 10.1055/s-0030-1260128
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Direct Arylation of Pyrrole Derivatives in Superbasic Media

Olena Vakuliuka,b, Beata Koszarnaa, Daniel T. Gryko*a,b
a Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
b Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
Fax: +48(22)3432036; e-Mail: daniel@icho.edu.pl;
Further Information

Publication History

Received 29 April 2011
Publication Date:
20 July 2011 (online)

Abstract

Direct arylation of N-alkyl- and N-arylpyrroles with aryl iodides can be performed in superbasic media, without external addition of a transition-metal catalyst. Lithium hydroxide in dimethyl sulfoxide promotes this reaction in a regioselective manner, leading to the expected 2-arylated products in good yield.