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Volumn 46, Issue 13, 2010, Pages 2247-2249

Tandem Nazarov cyclization-halovinylation of divinyl ketones under Vilsmeier conditions: Synthesis of highly substituted cyclopentadienes

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOPENTADIENE DERIVATIVE; KETONE; VINYL DERIVATIVE;

EID: 77949589120     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/b917703e     Document Type: Article
Times cited : (42)

References (48)
  • 1
    • 0004129985 scopus 로고    scopus 로고
    • ed. A . Togni and R. L. Halterman, Wiley-VCH, New York
    • Metallocenes, ed., A. Togni, and, R. L. Halterman, Wiley-VCH, New York, 1998
    • (1998) Metallocenes
  • 5
    • 0035907085 scopus 로고    scopus 로고
    • For selected recent examples of cyclopentadiene synthesis, see
    • For selected recent examples of cyclopentadiene synthesis, see: Z. Xi Q. Song J. Chen H. Guan P. Li Angew. Chem., Int. Ed. 2001 40 1913
    • (2001) Angew. Chem., Int. Ed. , vol.40 , pp. 1913
    • Xi, Z.1    Song, Q.2    Chen, J.3    Guan, H.4    Li, P.5
  • 13
    • 20444494998 scopus 로고    scopus 로고
    • For reviews on Nazarov rections, see
    • For reviews on Nazarov rections, see: H. Pellissier Tetrahedron 2005 61 6479
    • (2005) Tetrahedron , vol.61 , pp. 6479
    • Pellissier, H.1
  • 16
    • 24744438218 scopus 로고    scopus 로고
    • For recent examples of Nazarov reactions, see
    • For recent examples of Nazarov reactions, see: F. Dhoro M. A. Tius J. Am. Chem. Soc. 2005 127 12472
    • (2005) J. Am. Chem. Soc. , vol.127 , pp. 12472
    • Dhoro, F.1    Tius, M.A.2
  • 40
    • 20444408447 scopus 로고    scopus 로고
    • Compound 2a can be considered as a potential cyclopentadienone, for a discussion of the properties and reactivity of cyclopentadienones, see: C. Chen C. Xi Y. Jiang X. Hong J. Am. Chem. Soc. 2005 127 8024
    • (2005) J. Am. Chem. Soc. , vol.127 , pp. 8024
    • Chen, C.1    Xi, C.2    Jiang, Y.3    Hong, X.4
  • 42
    • 67650376993 scopus 로고    scopus 로고
    • 2Et or CONHAr under Vilsmeier conditions were found to afford δ-lactones and δ-lactams, respectively. See
    • 2Et or CONHAr under Vilsmeier conditions were found to afford δ-lactones and δ-lactams, respectively. See: J. Liu M. Wang F. Han Y. Liu Q. Liu J. Org. Chem. 2009 74 5090
    • (2009) J. Org. Chem. , vol.74 , pp. 5090
    • Liu, J.1    Wang, M.2    Han, F.3    Liu, Y.4    Liu, Q.5
  • 43
    • 77949633049 scopus 로고    scopus 로고
    • Note
    • 2 = 0.1416 (I > 2σ(I))
  • 44
    • 77949616548 scopus 로고    scopus 로고
    • Note
    • 3 (2.5 equiv) in DMF at ambient conditions for 1.5 h. For experimental details, see ESI.
  • 46
    • 57349170350 scopus 로고    scopus 로고
    • For details, please see ESI. As a comparison, no reaction was found when 1a (1.0 mmol) was treated with either concentrated HCl (3.0 equiv) or dry HCl gas (bubbled into the reaction mixture) in 5.0 mL of DMF at 90 °C for 3.0 h. These results provided further support for the proposed mechanism in Scheme 3 For selected recent examples, see
    • For details, please see ESI. As a comparison, no reaction was found when 1a (1.0 mmol) was treated with either concentrated HCl (3.0 equiv) or dry HCl gas (bubbled into the reaction mixture) in 5.0 mL of DMF at 90 °C for 3.0 h. These results provided further support for the proposed mechanism in Scheme 3 For selected recent examples, see: J. Hudon T. A. Cernak J. A. Ashenhurst J. L. Gleason Angew. Chem., Int. Ed. 2008 47 8885
    • (2008) Angew. Chem., Int. Ed. , vol.47 , pp. 8885
    • Hudon, J.1    Cernak, T.A.2    Ashenhurst, J.A.3    Gleason, J.L.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.