Journal
TETRAHEDRON LETTERS
Volume 42, Issue 8, Pages 1567-1570Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(00)02169-9
Keywords
palladium; carbonylation; thiophenols; alkynes; thioesters; syngas
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Control of the regioselective thiocarbonylation of terminal acetylenes 1a-e with arylthiols 2a,b was successfully achieved by using Pd(OAc)(2) and 1,4-bis(diphenylphosphino)butane (dppb), or 1,3-bis(diphenylphosphino)propane (dppp), as catalysts. The formation of the thioesters 3 or 4 depends mainly on the type of ligand (dppp or dppb) and the solvent (THF or CH2Cl2) under CO/H+ or syngas mixture. (C) 2001 Elsevier Science Ltd. All rights reserved.
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