期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2009, 期 31, 页码 5406-5413出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200900711
关键词
Cascade reaction; Benzothiazole; Copper catalysis; Sulfur heterocycles; Synthetic methods; Solvent effects
An efficient cascade process for the preparation of 2-substituted 1,3-benzothiazoles directly from 2-haloaryl isothiocyanates and O or S nucleophiles by a Cu-catalyzed, intramolecular, C-S bond formation has been developed. This cascade method is viable for the efficient syntheses of both O- and S-substituted 1,3-benzothiazoles. Furthermore, 1,3-benzothiazol-2(3H)-ones having an alkyl group allow easy access to 1,3-benzothiazolones. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
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