Journal
TETRAHEDRON
Volume 71, Issue 36, Pages 6176-6182Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2015.06.091
Keywords
Ynones; Ethynylbenziodoxolones; C-H alkynlyation
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Funding
- National Program on Key Basic Research Project of China (973 Program) [2013CB328900]
- National Science Foundation of China [21202107, 21321061, J1103315]
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A metal-free synthesis of ynones via direct allcynlyation of C-H bonds in aldehydes with ethynylbenziodoxolones is described. A variety of unactivated aldehydes undergo this transformation, affording ynones in good yields. These ynones could be further transformed into important heterocycles without purification. (C) 2015 Elsevier Ltd. All rights reserved.
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