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Volumn 64, Issue 26, 1999, Pages 9625-9631

Synthetic studies of cis-3a-aryloctahydroindole derivatives by copper- catalyzed cyclization of N-allyltrichloroacetamides: Facile construction of benzylic quaternary carbons by carbon-carbon bond-forming reactions

Author keywords

[No Author keywords available]

Indexed keywords

ACETAMIDE; COPPER; INDOLE DERIVATIVE;

EID: 0033601284     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo9912146     Document Type: Article
Times cited : (73)

References (61)
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    • For reviews of the transition metal-catalyzed radical reactions, see: (a) Iqbal, J.; Bhatia, B.; Nayyer, N. K. Chem Rev. 1994, 94, 519. (b) Kochi, J. K. Organometallic Mechanisms and Catalysts; Academic Press: New York, 1978.
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    • Academic Press: New York
    • For reviews of the transition metal-catalyzed radical reactions, see: (a) Iqbal, J.; Bhatia, B.; Nayyer, N. K. Chem Rev. 1994, 94, 519. (b) Kochi, J. K. Organometallic Mechanisms and Catalysts; Academic Press: New York, 1978.
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  • 3
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    • For reviews of the atom transfer radical reactions, see: (a) Giese, B.; Kopping, B.; Göbel, T.; Dickhaut, J.; Thoma, G.; Kulicke, K. J.; Trach, F. Org. React. 1996, 48, 301-586. (b) Giese, B. Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds; Pergamon: New York, 1986. (c) Curran, D. P.; Porter, N. A.; Giese, B. Stereochemistry of Radical Reaction; VCH: Weinheim, 1996; pp 23-115. (d) Curran, D. P. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Perganmon: Oxford, 1991; Vol. 4, p 715.
    • (1996) Org. React. , vol.48 , pp. 301-586
    • Giese, B.1    Kopping, B.2    Göbel, T.3    Dickhaut, J.4    Thoma, G.5    Kulicke, K.J.6    Trach, F.7
  • 4
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    • Pergamon: New York
    • For reviews of the atom transfer radical reactions, see: (a) Giese, B.; Kopping, B.; Göbel, T.; Dickhaut, J.; Thoma, G.; Kulicke, K. J.; Trach, F. Org. React. 1996, 48, 301-586. (b) Giese, B. Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds; Pergamon: New York, 1986. (c) Curran, D. P.; Porter, N. A.; Giese, B. Stereochemistry of Radical Reaction; VCH: Weinheim, 1996; pp 23-115. (d) Curran, D. P. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Perganmon: Oxford, 1991; Vol. 4, p 715.
    • (1986) Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds
    • Giese, B.1
  • 5
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    • VCH: Weinheim
    • For reviews of the atom transfer radical reactions, see: (a) Giese, B.; Kopping, B.; Göbel, T.; Dickhaut, J.; Thoma, G.; Kulicke, K. J.; Trach, F. Org. React. 1996, 48, 301-586. (b) Giese, B. Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds; Pergamon: New York, 1986. (c) Curran, D. P.; Porter, N. A.; Giese, B. Stereochemistry of Radical Reaction; VCH: Weinheim, 1996; pp 23-115. (d) Curran, D. P. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Perganmon: Oxford, 1991; Vol. 4, p 715.
    • (1996) Stereochemistry of Radical Reaction , pp. 23-115
    • Curran, D.P.1    Porter, N.A.2    Giese, B.3
  • 6
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    • Trost, B. M., Fleming, I., Eds.; Perganmon: Oxford
    • For reviews of the atom transfer radical reactions, see: (a) Giese, B.; Kopping, B.; Göbel, T.; Dickhaut, J.; Thoma, G.; Kulicke, K. J.; Trach, F. Org. React. 1996, 48, 301-586. (b) Giese, B. Radicals in Organic Synthesis: Formation of Carbon-Carbon Bonds; Pergamon: New York, 1986. (c) Curran, D. P.; Porter, N. A.; Giese, B. Stereochemistry of Radical Reaction; VCH: Weinheim, 1996; pp 23-115. (d) Curran, D. P. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Perganmon: Oxford, 1991; Vol. 4, p 715.
    • (1991) Comprehensive Organic Synthesis , vol.4 , pp. 715
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    • For recent syntheses: (a) Mori, M.; Kuroda, S.; Zhang, C.-S.; Sato. Y. J. Org. Chem. 1997, 62, 3263. (b) Nishimata, T.; Mori, M. J. Org. Chem. 1998, 63, 7586.
    • (1998) J. Org. Chem. , vol.63 , pp. 7586
    • Nishimata, T.1    Mori, M.2
  • 46
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    • note
    • 1H resonances were observed, indicating that interconversion of the conformers occurred at ambient temperature in the NMR time scale. We consider that both the aryl group and the chlorine atom occupy axial positions in one conformer of 21a or 21b, whereas those does equatorial positions in the other conformer.
  • 59
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    • note
    • We carried out crystallographic analysis of 24a and 24b. The molecular structure of 24a showed that very effective resonance stabilization provided that six atoms, C2, C1, O1, N1, C3, and C6, lie on the same plane in the molecular structure of 24a. The C-O distance is substantially longer than the usual C=O distances, whereas the N-CO bond length is shorter than normal N-C single bond distances (N-CO; 1.35 Å (1), C+O.; 1.24 Å (1)). Thus, the N-CO bond of 24a has a considerable double-bond character like A. Since X-ray analysis of 24b did not converge well (R = 7.7%), precise comparison of the structure of 24b with that of 24a is difficult. However, it is noteworthy that the molecular structure suggested a single bond character of N-CO bond (N-CO; 1.375 Å (4), C=O.; 1.195 Å (1)). Five atoms, C1, N1, C3, S1, and 03, lie on the same plane, which makes an angle of 13° with a plane consisting of C2, C1, and O1. We consider that the resonance structure shown as B is responsible for facile rotation of the CO-N bond in 24b. (Matrix Presented)
  • 60
    • 0032861740 scopus 로고    scopus 로고
    • The importance of the electron-withdrawing group on the nitrogen atom has recently reported by Giese et al. in the photocyclization of o-aminophenyl ketones: Seiler, M.; Schumacher, A.; Lindemann, U.; Barbosa, F.; Giese B. Synlett 1999, 1588.
    • (1999) Synlett , pp. 1588
    • Seiler, M.1    Schumacher, A.2    Lindemann, U.3    Barbosa, F.4    Giese, B.5


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.