Unusual ligand-dependent chemoselective Suzuki–Miyaura cross-coupling reactions of 3-bromo-4-trifloyl-thiophenes
作者:Jizhou Wang、Mark A. Seefeld、Juan Luengo
DOI:10.1016/j.tetlet.2011.09.026
日期:2011.11
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.