Journal
TETRAHEDRON LETTERS
Volume 52, Issue 27, Pages 3485-3488Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.04.118
Keywords
Polyethylene glycol; Alkynes; Copper; Oxidation; Green chemistry
Categories
Funding
- National Natural Science Foundation of China [20672054, 20872073]
- Committee of Science and Technology of Tianjin
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Polyethylene glycol was shown to be an environmentally benign reaction medium for the copper(II) salt catalyzed Glaser coupling reaction of terminal alkynes. In particular, oxygen as the sole oxidant worked very well for arylacetylenes even in short reaction time. The product was easily separated by extraction and the catalytic system could be reused four times without significant loss of reactivity. (C) 2011 Elsevier Ltd. All rights reserved.
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