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Convenient Synthesis of Benzothiazoles and Benzimidazoles through Bronsted Acid Catalyzed Cyclization of 2-Amino Thiophenols/Anilines with beta-Diketones

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Indexed by:期刊论文

Date of Publication:2014-02-07

Journal:ORGANIC LETTERS

Included Journals:PubMed、SCIE、Scopus

Volume:16

Issue:3

Page Number:764-767

ISSN No.:1523-7060

Abstract:Bronsted acid catalyzed cyclization reactions of 2-amino thiophenols/anilines with beta-diketones under oxidant-, metal-, and radiation-free conditions are described. Various 2-substituted benzothiazoles/benzimidazoles are obtained in satisfactory to excellent yields. Different groups such as methyl, chloro, nitro, and methoxy linked on benzene rings were tolerated under the optimized reaction conditions.

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