Journal
TETRAHEDRON
Volume 70, Issue 20, Pages 3342-3348Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2013.10.003
Keywords
C-H activation; Isoquinolines; Heterocycles; Ketimines; Multicatalysis; Ruthenium
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Funding
- European Research Council under the European Community's Seventh Framework Program/ERC [307535]
- CSC
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Carboxylate assistance allowed for ruthenium(II)-catalyzed oxidative alkyne annulations by ketimines under an ambient atmosphere of air. The ruthenium catalyst outperformed representative rhodium and palladium complexes, and provided versatile access to differently decorated 1-methylene-1,2-dihydroisoquinolines in a highly step- and atom-economical manner. Detailed mechanistic studies provided evidence for an initial reversible C-H bond activation event. (C) 2013 Elsevier Ltd. All rights reserved.
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