Synlett 2004(9): 1533-1536  
DOI: 10.1055/s-2004-829089
LETTER
© Georg Thieme Verlag Stuttgart · New York

An Efficient Conversion of Phenolic Esters to Benzothiazoles under Mild and Virtually Neutral Conditions

Asit K. Chakraborti*, Santosh Rudrawar, Gurmeet Kaur, Lalima Sharma
National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar, Punjab - 160062, India
Fax: +91(172)2214692; e-Mail: akchakraborti@niper.ac.in;
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Publikationsverlauf

Received 24 February 2004
Publikationsdatum:
29. Juni 2004 (online)

Abstract

Phenolic esters are efficiently converted to 2-substituted benzothiazoles in a one-pot reaction by treatment with 2-aminothiophenol in the presence of a catalytic amount of K2CO3 in N-methyl-2-pyrrolidone (NMP) at 100 °C.