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Volumn , Issue 5, 2009, Pages 0803-0807

Simple synthesis of conjugated all-(E)-polyenic aldehydes, ketones, and esters using chemoselective cross-metathesis and an iterative sequence of reactions: Application to the synthesis of navenone B

Author keywords

Allylation; Cross metathesis; Elimination; Navenone B; Polyenes

Indexed keywords


EID: 62449169795     PISSN: 09365214     EISSN: 14372096     Source Type: Journal    
DOI: 10.1055/s-0028-1087953     Document Type: Article
Times cited : (18)

References (40)
  • 16
    • 0001786881 scopus 로고    scopus 로고
    • Diederich, F, Stang, P. J, Eds, Wiley-VCH: New York
    • (c) Suzuki, A. In Metal-Catalyzed Cross-Coupling Reactions; Diederich, F.; Stang, P. J., Eds.; Wiley-VCH: New York, 1998, 49.
    • (1998) Metal-Catalyzed Cross-Coupling Reactions , pp. 49
    • Suzuki, A.1
  • 32
    • 62449277056 scopus 로고    scopus 로고
    • For the synthesis of compounds of type C and C′, R′ = H, see: Escher, I.; Glorius, F. Aldehydes, In Science of Synthesis, 25; Brückner, R., Ed.; Thieme: Stuttgart, 2007, 711.
    • For the synthesis of compounds of type C and C′, R′ = H, see: Escher, I.; Glorius, F. Aldehydes, In Science of Synthesis, Vol 25; Brückner, R., Ed.; Thieme: Stuttgart, 2007, 711.
  • 35
  • 37
    • 62449188869 scopus 로고    scopus 로고
    • Synthesis of Compound 4 To a solution of alkene 3 (190 mg, 0.45 mmol) in CH2Cl2 (2.3 mL) was added at r.t. ethyl acrylate (0.15 mL, 1.35 mmol) and Ru-II (14 mg, 0.023 mmol, The reaction mixture was stirred at r.t. overnight and then concentrated in vacuo. Purification of the residue by flash chromatography (hexane/EtOAc, 99:1) afforded 4 (154 mg, 69, as a yellow oil. Rf, 0.43 (hexane/EtOAc, 9:1, IR: 1739, 1720, 1656, 1232 cm-1. 1H NMR (300 MHz, CDCl3, δ, 7.66 (m, 4 H, 7.41 (m, 6 H, 6.83 (dt, J, 15.8, 7.2 Hz, 1 H, 5.85 (dt, J, 15.8, 1.5 Hz, 1 H, 5.76 (m, 1 H, 5.47 (dt, J, 15.5, 6.8 Hz, 1 H, 5.34 (m, 1 H, 4.18 (q, J, 6.8 Hz, 2 H, 3.69 (t, J, 6.4 Hz, 2 H, 2.49 (m, 2 H, 2.28 (q, J, 6.8 Hz, 2 H, 2.02 (s, 3 H, 1.26 (t, J, 6.8 Hz, 3 H, 1.04 (s, 9 H, 13C NMR 75 MHz, CDCl3, δ, 170.1
    • 3): δ = 170.1, 166.2, 143.3, 135.6, 133.8, 131.6, 129.6, 129.1, 127.6, 124.2, 72.8, 63.1, 60.3, 37.3, 35.6, 26.8, 21.2, 19.2, 14.2. MS: m/z = 377, 241, 199, 105.
  • 38
    • 62449094697 scopus 로고    scopus 로고
    • 3): δ = 7.66 (m, 4 H), 7.41 (m, 6 H), 7.30 (dd, J = 15.5, 11.5 Hz, 1 H), 6.44 (dd, J = 15.1, 10.2 Hz, 1 H), 6.13 (dd, J = 15.1, 11.5 Hz, 1 H), 6.09 (dd, J = 14.8, 10.2 Hz, 1 H), 5.92 (dt, J = 14.8, 6.4 Hz, 1 H), 5.85 (d, J = 15.5 Hz, 1 H), 4.13 (q, J = 7.2 Hz, 2 H), 3.69 (t, J = 6.4 Hz, 2 H)
    • 3): δ = 167.2, 144.7, 140.9, 136.6, 135.6, 133.8, 131.6, 129.6, 128.2, 127.6, 120.3, 63.2, 60.2, 36.3, 26.8, 19.2, 14.3. MS: m/z = 377, 227, 199, 105.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.