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Volumn 11, Issue 19, 2009, Pages 4314-4317

Benzotrifuranone: Synthesis, structure, and access to polycyclic heteroaromatics

Author keywords

[No Author keywords available]

Indexed keywords

BENZOFURAN DERIVATIVE; BENZOTRIFURANONE; HETEROCYCLIC COMPOUND; POLYCYCLIC AROMATIC HYDROCARBON;

EID: 70350147752     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol901631n     Document Type: Article
Times cited : (24)

References (61)
  • 30
  • 37
    • 70350195847 scopus 로고    scopus 로고
    • The corresponding protons for la (Figure 1) appear slightly upfield at δ = 3.90 ppm. The corresponding carbons appear at δ = 32.6, 1.10.1, 154.1, and 174.4 ppm
    • The corresponding protons for la (Figure 1) appear slightly upfield at δ = 3.90 ppm. The corresponding carbons appear at δ = 32.6, 1.10.1, 154.1, and 174.4 ppm.
  • 38
    • 70350191006 scopus 로고    scopus 로고
    • See the Supporting Information for details. A benzodifuranone does appear as a characterized intermediate in the synthesis of triacid 7
    • See the Supporting Information for details. A benzodifuranone does appear as a characterized intermediate in the synthesis of triacid 7.
  • 39
    • 70350201979 scopus 로고    scopus 로고
    • 3-symmetric molecules in the aba2 space group
    • 3-symmetric molecules in the aba2 space group.
  • 49
    • 70350191005 scopus 로고    scopus 로고
    • -1)
    • -1).
  • 50
    • 70350189439 scopus 로고    scopus 로고
    • - character on O1) and
    • - character on O1) and
  • 51
    • 70350208287 scopus 로고    scopus 로고
    • deshielding of the C2 protons
    • (b) deshielding of the C2 protons.
  • 52
    • 70350203567 scopus 로고    scopus 로고
    • For example, in terms of ring-opening kinetics with respect to common nucleophiles. Quantitative comparisons of 3 versus 1 are being pursued
    • For example, in terms of ring-opening kinetics with respect to common nucleophiles. Quantitative comparisons of 3 versus 1 are being pursued.
  • 53
    • 70350175583 scopus 로고    scopus 로고
    • The calculated (ZINDO/S) excitation energy with the largest oscillator strength is identical to the maximum absorption (i.e., 215 nm) and arises from multiple degenerate excitations (see the Supporting Information for details)
    • The calculated (ZINDO/S) excitation energy with the largest oscillator strength is identical to the maximum absorption (i.e., 215 nm) and arises from multiple degenerate excitations (see the Supporting Information for details).
  • 56
    • 70350172395 scopus 로고    scopus 로고
    • This simple acylation. procedure has neither been demonstrated in the literature for derivatives of la nor been performed with 1 (where R = alkyl or aryl) using simple acid chlorides
    • This simple acylation. procedure has neither been demonstrated in the literature for derivatives of la nor been performed with 1 (where R = alkyl or aryl) using simple acid chlorides.
  • 57
    • 70350195846 scopus 로고    scopus 로고
    • See the Supporting Information for the synthesis and characterization of 2a
    • See the Supporting Information for the synthesis and characterization of 2a.
  • 58
    • 70350175582 scopus 로고    scopus 로고
    • ZINDO/S calculations performed on 4b predict degenerate transitions at multiple wavelengths (278, 254, 238, and 207 nm). Data have been included in the Supporting Information
    • ZINDO/S calculations performed on 4b predict degenerate transitions at multiple wavelengths (278, 254, 238, and 207 nm). Data have been included in the Supporting Information.
  • 60
    • 70350191004 scopus 로고    scopus 로고
    • -1
    • -1.
  • 61
    • 70350188160 scopus 로고    scopus 로고
    • Attempts to refine the X-ray diffraction data obtained from needlelike crystals of 4b have been unsuccessful. A. crystal structure of 2,6,10-trimethyl-substituted 4b has been obtained and shows the anticipated π-stacking (plane-to-plane distance = 3.4 Â) in the context of ID columns. These data will be reported separately
    • Attempts to refine the X-ray diffraction data obtained from needlelike crystals of 4b have been unsuccessful. A. crystal structure of 2,6,10-trimethyl-substituted 4b has been obtained and shows the anticipated π-stacking (plane-to-plane distance = 3.4 Â) in the context of ID columns. These data will be reported separately.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.