4.4 Article

Unusual ligand-dependent chemoselective Suzuki-Miyaura cross-coupling reactions of 3-bromo-4-trifloyl-thiophenes

Journal

TETRAHEDRON LETTERS
Volume 52, Issue 48, Pages 6346-6348

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.09.026

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An unusual ligand-dependent chemoselective Suzuki-Miyaura cross-coupling reaction for 3-bromo-4-trifloyl-thiophenes was discovered. Pd(PPh3)(4) showed selectivity for triflate over bromide, whereas the selectivity was reversed for Pd((Bu3P)-Bu-t)(2). (C) 2011 Elsevier Ltd. All rights reserved.

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