Journal
TETRAHEDRON LETTERS
Volume 54, Issue 32, Pages 4330-4332Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.06.026
Keywords
Friedel-Crafts cyclization; Bismuth(III) triflate; Heterocycles; Tertiary alcohols
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Funding
- NSF [BIR-9512269]
- Oklahoma State Regents for Higher Education
- W.M. Keck Foundation
- Conoco, Inc.
- OSU College of Arts and Sciences
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Bismuth(III) triflate [Bi(OTf)(3)] has been developed as an efficient and mild catalyst for intramolecular Friedel-Crafts cyclizations of tertiary alcohols to prepare disubstituted tetrahydronapthalenes, chromans, thiochromans, tetrahydroquinolines, and tetrahydroiso-quinolines. The method represents a unified strategy to synthesize a variety of ring systems from tertiary alcohols using a common Lewis acid. (C) 2013 Elsevier Ltd. All rights reserved.
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