Journal
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
Volume 65, Issue 1, Pages 28-32Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jccs.201700125
Keywords
Xanthone; Palladium-catalyzed reaction; Heterocycle synthesis
Categories
Funding
- National Natural Science Foundation of China [31301712, 31270388]
- Opening Funds of Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
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The ring closure of 2-iodo diaryl ether in the presence of a palladium catalyst to xanthone under carbon monoxide atmosphere is studied. A series of xanthones could be successfully obtained through this protocol, with Pd(OAc)(2) as the catalyst, P(Cy)(3) as ligand, PivONa center dot H2O as base, and PivOH and tetrabutylamonium bromide as additives in DMSO, in moderate to good yields.
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