Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 351, Issue 13, Pages 2101-2106Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200900258
Keywords
aryl halides; cross-coupling; ligand-free; samarium powder; terminal alkynes
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Funding
- National Natural Science Foundation of China [20802046]
- Key Laboratory of Organic Synthesis of Jiangsu Province
- University of Basel, Switzerland
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A study of samarium powder-catalyzed cross-coupling reactions of aryl halides with terminal alkynes is described. The couplings performed in the polyethylene glycol PEG-600 provided the corresponding coupling products in good yields. The first example of palladium-free, copper-free and amine-free catalytic system for Sonogashira couplings is presented in the absence of ligand.
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