메뉴 건너뛰기




Volumn 10, Issue 5, 2008, Pages 821-824

Expedient approach to chiral cyclobutanones: Asymmetric synthesis of cyclobut-G

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOBUTANE DERIVATIVE; DRUG DERIVATIVE; GUANINE; LOBUCAVIR;

EID: 43549090706     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol702977x     Document Type: Article
Times cited : (30)

References (48)
  • 1
    • 58149192447 scopus 로고    scopus 로고
    • Rappoport, Z, Liebman, J. F, Eds, John Wiley & Sons, Ltd, West Sussex, England, Chapter 1
    • (a) Wiberg, K. B. In The Chemistry of Cyclobutanes; Rappoport, Z.; Liebman, J. F., Eds.; John Wiley & Sons, Ltd.: West Sussex, England, 2005; Vol. 1, Chapter 1.
    • (2005) The Chemistry of Cyclobutanes , vol.1
    • Wiberg, K.B.1
  • 3
    • 18244384582 scopus 로고    scopus 로고
    • Rappoport, Z, Liebman, J. F, Eds, John Wiley & Sons, Ltd, West Sussex, England, Chapter 9
    • (a) Fu, N.-Y.; Chan, S.-H.; Wong, H. N. C. In The Chemistry of Cyclobutanes; Rappoport, Z.; Liebman, J. F., Eds.; John Wiley & Sons, Ltd.: West Sussex, England, 2005; Vol. 1, Chapter 9.
    • (2005) The Chemistry of Cyclobutanes , vol.1
    • Fu, N.-Y.1    Chan, S.-H.2    Wong, H.N.C.3
  • 6
    • 85007136055 scopus 로고    scopus 로고
    • Naturally Occurring Cyclobutanes
    • Hudlicky, T, Ed, Elsevier Science Ltd, New York
    • (a) Hansen, T. V.; Stenstrom, Y. Naturally Occurring Cyclobutanes. In Organic Synthesis Theory and Applications; Hudlicky, T., Ed.; Elsevier Science Ltd.: New York, 2001; Vol. 5, pp 1-38.
    • (2001) Organic Synthesis Theory and Applications , vol.5 , pp. 1-38
    • Hansen, T.V.1    Stenstrom, Y.2
  • 7
    • 23044486220 scopus 로고    scopus 로고
    • and references therein
    • (b) Taber, D. F.; Frankowski, K. J. J. Org. Chem. 2005, 70, 6417-6421 and references therein.
    • (2005) J. Org. Chem , vol.70 , pp. 6417-6421
    • Taber, D.F.1    Frankowski, K.J.2
  • 8
    • 58149196790 scopus 로고    scopus 로고
    • Rappoport, Z, Liebman, J. F, Eds, John Wiley & Sons, Ltd, West Sussex, England, Chapter 8
    • Lee-Ruff, E. In The Chemistry of Cyclobutanes; Rappoport, Z.; Liebman, J. F., Eds.; John Wiley & Sons, Ltd.: West Sussex, England, 2005; Vol. 1, Chapter 8.
    • (2005) The Chemistry of Cyclobutanes , vol.1
    • Lee-Ruff, E.1
  • 9
    • 58149201557 scopus 로고    scopus 로고
    • For recent approaches limited to bicyclic adducts, see
    • For recent approaches limited to bicyclic adducts, see:
  • 11
    • 35349012652 scopus 로고    scopus 로고
    • Luzung, M. R.; Mauleon, P.; Toste, F. D. J. Am. Chem. Soc. 2007, 729, 12402-12403. See also:
    • (b) Luzung, M. R.; Mauleon, P.; Toste, F. D. J. Am. Chem. Soc. 2007, 729, 12402-12403. See also:
  • 14
    • 0000489522 scopus 로고    scopus 로고
    • Cyclopentanones: (a) Greene, A. E.; Charbonnier, F.; Luche, M.-J.; Moyano, A. J. Am. Chem. Soc. 1987, 709, 4752-4753.
    • Cyclopentanones: (a) Greene, A. E.; Charbonnier, F.; Luche, M.-J.; Moyano, A. J. Am. Chem. Soc. 1987, 709, 4752-4753.
  • 16
    • 0026782629 scopus 로고    scopus 로고
    • Lactones: (a) B. M. de Azevedo, M.; Murta, M. M.; Greene, A. E. J. Org. Chem. 1992, 57, 4567-4569.
    • Lactones: (a) B. M. de Azevedo, M.; Murta, M. M.; Greene, A. E. J. Org. Chem. 1992, 57, 4567-4569.
  • 19
    • 58149190428 scopus 로고    scopus 로고
    • Pyrrolidinones: (a) Ncbois, P.; Greene, A. E. J. Org. Chem. 1996, 67, 5210-5211.
    • Pyrrolidinones: (a) Ncbois, P.; Greene, A. E. J. Org. Chem. 1996, 67, 5210-5211.
  • 33
    • 0031776364 scopus 로고    scopus 로고
    • Paquette, L. A.; Heidelbaugh, T. M. Synthesis 1998, 495-508.
    • (e) Paquette, L. A.; Heidelbaugh, T. M. Synthesis 1998, 495-508.
  • 35
    • 0030248667 scopus 로고    scopus 로고
    • 2707 2710, R, and (S)-Sterico1 [l-(2,4.6-triisopropylphenyl)ethanol] are now commercially available from Sigma-Aldrich
    • Delair. P.; Kanazawa. A. M.; de Azevedo, M. B. M.; Greene, A. E. Tetrahedron: Asymmetry 1996, 7, 2707 2710. (R)- and (S)-Sterico1 [l-(2,4.6-triisopropylphenyl)ethanol] are now commercially available from Sigma-Aldrich.
    • (1996) Tetrahedron: Asymmetry , vol.7
    • Delair, P.1    Kanazawa, A.M.2    de Azevedo, M.B.M.3    Greene, A.E.4
  • 36
    • 58149192134 scopus 로고    scopus 로고
    • The cis-eno! ethers were prepared from Stericol (52-71% yields) by the procedure described in ref 10.
    • The cis-eno! ethers were prepared from Stericol (52-71% yields) by the procedure described in ref 10.
  • 37
    • 58149192446 scopus 로고    scopus 로고
    • 2o (10 ml.) at 20 °C was added Zn-Cu (480 mg, 7.3 mmol), followed by trichloroacetyl chloride (0.11 ml, 1.0 mmol) dropwise over 30 min. A saturated solution of ammonium chloride in methanol (20 ml) was then added, and the resulting mixture was refluxed for 10 min. The crude product was isolated in the usual way and purified by flash chromatography on silica gel to afford cyclobutanone 3.
    • 2o (10 ml.) at 20 °C was added Zn-Cu (480 mg, 7.3 mmol), followed by trichloroacetyl chloride (0.11 ml, 1.0 mmol) dropwise over 30 min. A saturated solution of ammonium chloride in methanol (20 ml) was then added, and the resulting mixture was refluxed for 10 min. The crude product was isolated in the usual way and purified by flash chromatography on silica gel to afford cyclobutanone 3.
  • 38
    • 58149180564 scopus 로고    scopus 로고
    • Except for the cycloadditions of the benzyl- and allyl-substituted enol ethers lb and 1c. these cycloadditions have not been previously reported.
    • Except for the cycloadditions of the benzyl- and allyl-substituted enol ethers lb and 1c. these cycloadditions have not been previously reported.
  • 40
    • 4544278000 scopus 로고    scopus 로고
    • For a minireview. see
    • (b) For a minireview. see: Gonda. J. Angew. Chem., Int. Ed. 2004, 43, 3516-3524.
    • (2004) Angew. Chem., Int. Ed , vol.43 , pp. 3516-3524
    • Gonda, J.1
  • 46
  • 48
    • 58149182872 scopus 로고    scopus 로고
    • R (enantiomer) = 18.0 min.
    • R (enantiomer) = 18.0 min.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.