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Synlett 2013; 24(17): 2241-2244
DOI: 10.1055/s-0033-1339758
letter
© Georg Thieme Verlag Stuttgart · New York

Samarium(III) Triflate as an Efficient and Reusable Catalyst for Facile Synthesis of Benzoxazoles and Benzothiazoles in Aqueous Medium

Pratapsinha B. Gorepatil
Department of Chemistry, S. C. S. College, Omerga, Dist-Osmanabad 413 606, India   Fax: +91(2475)252020   eMail: gorepatilpratap1986@gmail.com   eMail: Inglevilas71@yahoo.in
,
Yogesh D. Mane
Department of Chemistry, S. C. S. College, Omerga, Dist-Osmanabad 413 606, India   Fax: +91(2475)252020   eMail: gorepatilpratap1986@gmail.com   eMail: Inglevilas71@yahoo.in
,
Vilas S. Ingle*
Department of Chemistry, S. C. S. College, Omerga, Dist-Osmanabad 413 606, India   Fax: +91(2475)252020   eMail: gorepatilpratap1986@gmail.com   eMail: Inglevilas71@yahoo.in
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Publikationsverlauf

Received: 16. Juni 2013

Accepted after revision: 18. August 2013

Publikationsdatum:
13. September 2013 (online)

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Abstract

A simple, green, and efficient method is presented for the synthesis of benzoxazoles and benzothiazoles from reaction of o-aminophenols, o-aminothiophenols, and aliphatic or aromatic aldehydes using samarium triflate as a reusable acid catalyst under mild reaction conditions in aqueous medium.

Key words

benzoxazoles - benzothiazoles - samarium triflate
 

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