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Volumn 10, Issue 3, 2008, Pages 365-368

Cu-catalyzed synthesis of symmetric group 6 (Fischer) bis-carbene complexes

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EID: 38949116593     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol702464r     Document Type: Article
Times cited : (13)

References (52)
  • 1
    • 38949163621 scopus 로고    scopus 로고
    • Selected reviews on different aspects of metal carbene chemistry: (a) Dötz, K. H.; Fischer, H.; Hofmann, P.; Kreissel, R.; Schubert, U.; Weiss, K. Transition Metal Carbene Complexes; Verlag Chemie: Deerfield Beach, FL, 1983.
    • Selected reviews on different aspects of metal carbene chemistry: (a) Dötz, K. H.; Fischer, H.; Hofmann, P.; Kreissel, R.; Schubert, U.; Weiss, K. Transition Metal Carbene Complexes; Verlag Chemie: Deerfield Beach, FL, 1983.
  • 2
    • 0000533326 scopus 로고
    • Trost, B. M, Fleming, I, Eds, Pergamon: Oxford
    • (b) Wulff, W. D. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford, 1991; Vol. 5, p 1065.
    • (1991) Comprehensive Organic Synthesis , vol.5 , pp. 1065
    • Wulff, W.D.1
  • 3
    • 0000887836 scopus 로고
    • Abel, E. W, Stone, F. G. A, Wilkinson, G, Eds, Pergamon: Oxford
    • (c) Wulff, W. D. In Comprehensive Organometallic Chemistry II; Abel, E. W., Stone, F. G. A., Wilkinson, G., Eds.; Pergamon: Oxford, 1995; Vol. 12, p 470.
    • (1995) Comprehensive Organometallic Chemistry II , vol.12 , pp. 470
    • Wulff, W.D.1
  • 8
    • 35948969336 scopus 로고    scopus 로고
    • For recent examples of some natural products synthesized using Fischer carbenes, see: a
    • For recent examples of some natural products synthesized using Fischer carbenes, see: (a) Huang, J.; Wu, C.; Wulff, W. D. J. Am. Chem. Soc. 2007, 129, 13366.
    • (2007) J. Am. Chem. Soc , vol.129 , pp. 13366
    • Huang, J.1    Wu, C.2    Wulff, W.D.3
  • 14
    • 0034301372 scopus 로고    scopus 로고
    • For a review in the synthesis and synthetic applications of bi- and polymetallic carbenes, see
    • For a review in the synthesis and synthetic applications of bi- and polymetallic carbenes, see: Sierra, M. A. Chem. Rev. 2000, 100, 3591.
    • (2000) Chem. Rev , vol.100 , pp. 3591
    • Sierra, M.A.1
  • 22
    • 0000637003 scopus 로고    scopus 로고
    • Berke, H.; Härter, P.; Huttner, G.; v. Seyerl, J. J. Organomet. Chem. 1981, 219, 317.
    • (g) Berke, H.; Härter, P.; Huttner, G.; v. Seyerl, J. J. Organomet. Chem. 1981, 219, 317.
  • 43
    • 38949215419 scopus 로고    scopus 로고
    • The synthesis of complex 2a is representative: The Hay catalyst was prepared according to the literature (see ref 12, To the resulting catalyst was added dropwise a solution of the monocarbene in dry acetone. The mixture was stirred until the disappearance of monocarbene (checked by TLC, The reaction was quenched with water and filtered to eliminate the salts formed. The filtrate was extracted with diethyl ether. The combined organic phases were washed with HCl (5, and water, dried over MgSO4, and filtered. The solvent was eliminated and purification by column chromatography on silica gel afforded pure compound: 1H NMR (CDCl3) δ, 7.71-7.43 (m, 8H, 4.77 (q, J, 7.1 Hz, 4H, 1.60 (t, J, 7.1 Hz, 6H, 13C NMR (CDCl3) δ, 313.7, 225.7, 216.1, 135.8, 135.0, 133.2, 129.2, 122.6, 121.7, 91.4, 80.5, 76.0, 75.0, 15.0; IR (CHCl 3) v 2062, 1954, 1217, 775 cm-1. Anal. Caled for
    • 2: C, 57.92; H, 2.43. Found: C, 57.78; H, 2.21.
  • 52
    • 38949181859 scopus 로고    scopus 로고
    • Compound 8. A solution of 21 mg (0.24 mmol) of N,N'-dimethylurea in 20 mL of THF was added by syringe pump into a solution of 60 mg (0.08 mmol) of bis-carbene 2a in 80 mL of THF for 12 h. Then, the mixture was stirred for an additional 24 h at room temperature. The solvent was removed in vacuo, and the residue was purified by column chromatography on silica gel affording 46 mg (69 , of compound 8: 1H NMR (CDCl3) δ 7.67-7.66 (m, 2H, 7.51-7.46 (m, 4H, 7.31-7.30 (m, 2H, 7.21 (s, 2H, 4.19 (s, 6H, 3.28 (s, 6H, 13C NMR (CDCl3) δ 261.4, 223.7, 217.3, 149.4, 141.2, 134.7, 132.3, 129.7, 128.9, 124.5, 123.0, 102.8, 80.6, 75.5, 45.9, 35.7; IR (CHCl 3) v 2053, 1910, 1696, 1660 cm-1. Anal. Caled for C38H22Cr2N4O12: C, 54.95; H, 2.67. Found: C, 55.22;H, 2.40. Compound 9. A solution of 50 mg (0.06 mmol) of bis-carbene
    • 4: C, 70.18; H, 4.63. Found: C 70. 32; H, 4. 80.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.