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Volumn 3, Issue 5, 2008, Pages 881-886

Rhodium-catalyzed oxidative coupling between salicylaldehydes and internal alkynes with C-H bond cleavage to produce 2,3-disubstituted chromones

Author keywords

C C coupling; C H activation; Homogeneous catalysis; Oxidation; Rhodium

Indexed keywords


EID: 54849421586     PISSN: 18614728     EISSN: 1861471X     Source Type: Journal    
DOI: 10.1002/asia.200800037     Document Type: Article
Times cited : (102)

References (63)
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    • For reviews concerning the functionalization of C-H bonds, see: a) F. Kakiuchi, Top Organomet. Chem. 2007, 24, 1;
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    • For the Rh-catalyzed oxidative coupling of benzene with ethylene, see: a
    • For the Rh-catalyzed oxidative coupling of benzene with ethylene, see: a) T. Matsumoto, R. A. Periana, D. J. Taube, H. Yoshida, J. Catal. 2002, 206, 272;
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    • for the Rh-catalyzed oxidative arylation of 2-aryl pyridines and an imine, see: c T. Vogler, A. Studer, Org. Lett. 2008, 10, 129;
    • for the Rh-catalyzed oxidative arylation of 2-aryl pyridines and an imine, see: c) T. Vogler, A. Studer, Org. Lett. 2008, 10, 129;
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    • for an Ir-catalyzed arylation, see: b Y. Nishinaka, T. Satoh, M. Miura, H. Morisaka, M. Nomura, H. Matsui, C. Yamaguchi, Bull. Chem. Soc. Jpn. 2001, 74, 1727;
    • for an Ir-catalyzed arylation, see: b) Y. Nishinaka, T. Satoh, M. Miura, H. Morisaka, M. Nomura, H. Matsui, C. Yamaguchi, Bull. Chem. Soc. Jpn. 2001, 74, 1727;
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    • for Rh-catalyzed alkylation, see: c M. Imai, M. Tanaka, S. Nagumo, N. Kawahara, H. Suemune, J. Org. Chem. 2007, 72, 2543, and references therein;
    • for Rh-catalyzed alkylation, see: c) M. Imai, M. Tanaka, S. Nagumo, N. Kawahara, H. Suemune, J. Org. Chem. 2007, 72, 2543, and references therein;
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    • Mitsubishi Chemical Copr., Japan
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    • (2004)
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    • A similar promotional effect of this ligand was observed in the reaction of triaryl methanol compounds with alkynes; see reference [6g
    • A similar promotional effect of this ligand was observed in the reaction of triaryl methanol compounds with alkynes; see reference [6g].
  • 55
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    • 3)], see: R. P. Hughes, D. C. Lindner, L. M. Liable-Sands, A. L. Rheingold, Organometallics 2001, 20, 3519.
    • 3)], see: R. P. Hughes, D. C. Lindner, L. M. Liable-Sands, A. L. Rheingold, Organometallics 2001, 20, 3519.
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    • The participation of another sequence, in which the Rh I-catalyzed hydroacylation of the alkyne see reference [6a,b, is followed by oxidative cyclization, cannot be excluded. However, it is known that dialkyl acetylenes, such as 2g, undergo hydroacylation smoothly under RhI catalysis. Under the present oxidative conditions, 2g underwent sluggish coupling with 1a, and no hydroacylation product was formed in a detectable amount. Thus, the predominant active species in the present reaction seems to be different from that in the hydroacylation
    • I-catalyzed hydroacylation of the alkyne (see reference [6a,b]) is followed by oxidative cyclization, cannot be excluded. However, it is known that dialkyl acetylenes, such as 2g, undergo hydroacylation smoothly under RhI catalysis. Under the present oxidative conditions, 2g underwent sluggish coupling with 1a, and no hydroacylation product was formed in a detectable amount. Thus, the predominant active species in the present reaction seems to be different from that in the hydroacylation.
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    • S . Gobbi, A. Cavalli, A. Rampa, F. Belluti, L. Piazzi, A. Paluszcak, R. W. Hartmann, M. Recanatini, A. Bisi, J. Med. Chem. 2006, 49, 4777.
    • S . Gobbi, A. Cavalli, A. Rampa, F. Belluti, L. Piazzi, A. Paluszcak, R. W. Hartmann, M. Recanatini, A. Bisi, J. Med. Chem. 2006, 49, 4777.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.