Journal
TETRAHEDRON LETTERS
Volume 56, Issue 46, Pages 6463-6467Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2015.09.153
Keywords
Copper; Cross-dehydrogenative coupling; Alkynyl sulfide; MCM-41; Heterogeneous catalysis
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Funding
- National Natural Science Foundation of China [21272044]
- Scientific Research Fund of Education Department of Jiangxi Province [KJLD13022]
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A heterogeneous copper-catalyzed direct oxidative cross-dehydrogenative coupling of terminal alkynes with thiols was achieved in DMSO at 70 degrees C in the presence of an MCM-41-supported bidentate nitrogen copper(I) complex [MCM-41-2N-CuCl] and K2CO3 under an atmosphere of O-2, yielding selectively a variety of alkynyl sulfides in good to excellent yields. This heterogeneous copper catalyst can be easily recovered by a simple filtration and recycled 10 times without any decreases in activity. (C) 2015 Elsevier Ltd. All rights reserved.
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