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Volumn 52, Issue 23, 2011, Pages 3026-3028

A concise approach to chiral chromenes based on levoglucosenone

Author keywords

2H Chromenes; Beckmann fragmentation; Domino reaction; Levoglucosenone

Indexed keywords

BENZALDEHYDE DERIVATIVE; CHROMENE DERIVATIVE; KETONE DERIVATIVE; LEVOGLUCOSENONE; UNCLASSIFIED DRUG;

EID: 79955661308     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2011.04.004     Document Type: Article
Times cited : (22)

References (38)
  • 1
    • 0011784322 scopus 로고
    • Chromenes, Chromanones, and Chromones Wiley: New York
    • Ellis, G. P. Chromenes, Chromanones, and Chromones. In The Chemistry of Heterocyclic Compounds; Wiley: New York, 1977; Vol. 31, pp 11-139
    • (1977) The Chemistry of Heterocyclic Compounds , vol.31 , pp. 11-139
    • Ellis, G.P.1
  • 3
    • 77954892711 scopus 로고    scopus 로고
    • Pyrans and their Benzo Derivatives: Applications Katritzky, A. R., Ramsden, C. A., Scriven, E. V. F., Taylor, R. J. K., Eds.; Elsevier: Oxford
    • Fravel, B.W. Pyrans and their Benzo Derivatives: Applications. In Comprehensive Heterocyclic Chemistry III; Katritzky, A. R., Ramsden, C. A., Scriven, E. V. F., Taylor, R. J. K., Eds.; Elsevier: Oxford, Vol. 7, pp 701-726
    • Comprehensive Heterocyclic Chemistry III , vol.7 , pp. 701-726
    • Fravel, B.W.1
  • 5
    • 84906434208 scopus 로고    scopus 로고
    • Pyrans and their Benzo Derivatives: Synthesis
    • Katritzky, A. R., Ramsden, C. A., Scriven, E. V. F., Taylor, R. J. K., Eds.; Elsevier: Oxford
    • Brimble, M. A.; Gibson, J. S.; Sperry, J. Pyrans and their Benzo Derivatives: Synthesis. In Comprehensive Heterocyclic Chemistry III; Katritzky, A. R., Ramsden, C. A., Scriven, E. V. F., Taylor, R. J. K., Eds.; Elsevier: Oxford, Vol. 7, pp 419-699
    • Comprehensive Heterocyclic Chemistry III , vol.7 , pp. 419-699
    • Brimble, M.A.1    Gibson, J.S.2    Sperry, J.3
  • 24
    • 36749063967 scopus 로고    scopus 로고
    • New Stereoselective Functionalization of Cellulose-Derived Pyrolysis Derivatives: Levoglucosenone and Its Dimer
    • ACS Symposium Series 954; American Chemical Society: Washington, DC
    • Witczak, Z. J. New Stereoselective Functionalization of Cellulose-Derived Pyrolysis Derivatives: Levoglucosenone and Its Dimer. In Materials, Chemicals, and Energy from Forest Biomass; ACS Symposium Series 954; American Chemical Society: Washington, DC, 2007; pp 332-349
    • (2007) Materials, Chemicals, and Energy from Forest Biomass , pp. 332-349
    • Witczak, Z.J.1
  • 32
    • 79955664650 scopus 로고    scopus 로고
    • note
    • 1,10a = 5.2 Hz for 2′ (cf. Refs. 7b and 8b).
  • 33
    • 79955662311 scopus 로고    scopus 로고
    • note
    • 2O (3 ml) and the precipitate filtered and dried.
  • 34
    • 79955649393 scopus 로고    scopus 로고
    • int = 0.0348] were used for further refinement. The absorption correction was performed empirically using APEX2 (Bruker, 2005). Analysis of Fourier density synthesis revealed that the SPh substituent is disordered by two positions with equal occupancies. The refinement converged to wR2 = 0.0531 and GOF = 1.000 for all independent reflections (R1 = 0.0749 was calculated against F for 3104 observed reflections with I >2σ(I)). The refinement of absolute structure led to a Flack parameter (Flack, H.D. Acta Crystallogr., Sect. A 1983, 39, 876-881) equal to 0.00(17). All calculations were performed using SHELXTL PLUS 5.0 (Sheldrick, G.M. Acta Crystallogr., Sect. A 2008, 64, 112-122). CCDC 799240 contains the supplementary crystallographic data for 3b. These data can be obtained free of charge via http://www.ccdc.cam.ac.uk/conts/retrieving.html (or from the CCDC, 12 Union Road, Cambridge, CB2 1EZ, UK; fax: (+44) 1223 336033; or deposit@ccdc.cam.ac.uk.
  • 35
    • 79955674315 scopus 로고    scopus 로고
    • note
    • 3 (1 ml) was added dropwise at 0 °C with stirring. The resulting mixture was kept at 0 °C for 40 min and then evaporated to dryness. The residue was chromatographed on silica gel (eluent: hexane/EtOAc, 5:1) to afford nitriles 4a-c.


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