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Volumn , Issue 2, 2009, Pages 306-309

A facile approach to 2-substituted isoflav-3-enes via isoflavylium salts

Author keywords

Isoflavene; Isoflavonoid; Isoflavylium; Nucleophilic additions; Trityl salts

Indexed keywords


EID: 62349133482     PISSN: 09365214     EISSN: 14372096     Source Type: Journal    
DOI: 10.1055/s-0028-1087523     Document Type: Article
Times cited : (4)

References (31)
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    • 8d
    • 8d
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    • 9d,e
    • 9d,e
  • 23
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    • PhD Thesis; University of Wollongong: Australia
    • (b) Faragalla, J. E. PhD Thesis; University of Wollongong: Australia, 2005.
    • (2005)
    • Faragalla, J.E.1
  • 25
    • 62349135710 scopus 로고    scopus 로고
    • WO 2000049009, 177059
    • (d) Heaton, A.; Kumar, N. WO 2000049009, 2000; Chem. Abstr. 2000, 133, 177059.
    • (2000) Chem. Abstr , vol.133
    • Heaton, A.1    Kumar, N.2
  • 27
    • 62349094845 scopus 로고    scopus 로고
    • 2 as the mobile phase to afford the product as a colorless crystalline solid (431 mg, 80%).
    • 2 as the mobile phase to afford the product as a colorless crystalline solid (431 mg, 80%).
  • 29
    • 49149146669 scopus 로고    scopus 로고
    • Deprotection of TBS ethers by the related trityl tetrafluoroborate has been reported with the anion acting as a fluoride ion source. See: Metcalf, B. W, Burkhart, J. P, Jund, K. Tetrahedron Lett. 1980, 21, 35
    • Deprotection of TBS ethers by the related trityl tetrafluoroborate has been reported with the anion acting as a fluoride ion source. See: Metcalf, B. W.; Burkhart, J. P.; Jund, K. Tetrahedron Lett. 1980, 21, 35.
  • 30
    • 62349114790 scopus 로고    scopus 로고
    • 2 as the mobile phase to afford the product as a creamy white solid (430 mg, 76%).
    • 2 as the mobile phase to afford the product as a creamy white solid (430 mg, 76%).
  • 31
    • 62349109837 scopus 로고    scopus 로고
    • Data for Selected Compounds 7-Acetoxy-3-p-acetoxyphenyl-2-cyano-2H-1-benzopyran (7b) White solid; mp 156-158°C. 1H NMR (500 MHz, CDCl3, δ, 7.49 (d, J, 8.7 Hz, 2 H, H-2′/6′, 7.23 (d, J, 8.0 Hz, 1 H, H-5, 7.18 (d, J, 8.6 Hz, 2 H, H-3′/5′, 6.97 (s, 1 H, H4, 6.85 (dd, J, 2.5, 8.1 Hz, 1 H, H-6, 6.84 (s, 1 H, H-8, 6.01 (s, 1 H, H-2, 2.32 (s, 3 H, CH3, 2.30 (s, 3 H, CH3, 13C NMR (75 MHz, CDCl3, δ, 169.1 (C=O, 168.9 (C=O, 151.9 (C7, 151.1 (C8a, 150.3 (C4′, 131.9 (C3, 128.3 (C5, 126.2 (C2′, 125.9 (C1′, 122.4 (C3′, 122.3 (C4, 119.1 (C4a, 117.0 (C6, 110.5 (C8, 64.3 (C2, 21.1 (CH3, MS (CI, m/z, 323 (100, MH, HCN, Anal. Calcd, ) for C 20H15NO5: C, 68.76; H, 4.33; N, 4.01. Found: C, 69.20;
    • 10: C, 69.28; H, 4.60. Found: C, 69.27; H, 4.62.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.