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An efficient and recyclable silica‐supported carbene–Cu(II) catalyst for the oxidative coupling reaction of terminal alkynes with H ‐phosphonates under base‐free reaction conditions
Author(s) -
Liu Ping,
Yang Jin,
Li Pinhua,
Wang Lei
Publication year - 2011
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.1847
Subject(s) - chemistry , catalysis , carbene , reactivity (psychology) , oxidative coupling of methane , base (topology) , coupling reaction , reaction conditions , terminal (telecommunication) , medicinal chemistry , oxidative phosphorylation , polymer chemistry , organic chemistry , medicine , mathematical analysis , alternative medicine , pathology , telecommunications , biochemistry , mathematics , computer science
The oxidative coupling reactions of terminal alkynes with H ‐phosphonates were explored using SiO 2 −NHC−Cu(II) (5.0 mol%) as catalyst at room temperature under base‐free reaction conditions. The reactions of a variety of terminal alkynes with H ‐phosphonates generated the corresponding alkynylphosphonate products in good to excellent yields. In addition, SiO 2 −NHC−Cu(II) could be recovered and recycled for six consecutive trials without significant loss of its reactivity. Copyright © 2011 John Wiley & Sons, Ltd.