Journal
TETRAHEDRON
Volume 70, Issue 15, Pages 2556-2562Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2014.02.037
Keywords
Hydrophosphinylation; Hydrophosphonylation; Hydrophosphorylation; Alkynes; Copper(II)-catalyst; syn-Addition
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Cu(acac)(2) is the new universal catalyst for beta-E regio- and stereoselective syn-addition of the H-P(O)-bond of diphenylphosphine oxide, H-phosphinates, dialkylphosphites to various alkynes in the synthesis of P(O)-containing alkenes. Without additives and ligands Cu(II)-compounds showed better results than CuI or Ni(acac)(2). The catalytic system developed is tolerant to typical organic functional groups present in the alkynes and to the nature of different substituents in the H-P(O)-compounds. (C) 2014 Elsevier Ltd. All rights reserved.
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