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Tetrahedron Letters
Volumn 15, Issue 14, 1974, Pages 1241-1244
Pathways for thermal z,e isomerization in tetrabenzopentafulvalenes: Transition-state stabilization combined with ground-state destabilization
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Indexed keywords

EID: 0006213008     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(01)82455-2     Document Type: Article
Times cited : (19)
References (18)
  • 1
    • 84918300942 scopus 로고    scopus 로고
    • Fulvenes and Thermochromic Ethylenes. Part 84. For Part 83, see I. Agranat and D. Avnir, J. Chem. Soc., Perkin I, in the press.
  • 10
    • 84918300941 scopus 로고    scopus 로고
    • Compounds II and Ill have been fully characterized (combustion analyses ir, uv, mass, spectra).
  • 11
    • 84918300940 scopus 로고    scopus 로고
    • 4Si.
  • 14
    • 0343630161 scopus 로고
    • Contribution � l'�tude des dibenzofluor�nes: le dibenzo-2, 3, 5, 6-fluor�ne
    • (1947) Helvetica Chimica Acta , vol.30 , pp. 620
  • 15
    • 84918300939 scopus 로고    scopus 로고
    • The singlet at 8.15 ppm represents H-5 and H-5′ (in both isomers). The multiplet at 7.77 ppm represents the angular protons H-4 and H-4′ and the α-naphthalene protons H-6, H-9, H-6′ and H-9′, while the multiplet at 7.34 ppm represents H-2, H-3, H-2′, H-3′ and the β-naphthalene protons H-7, H-8, H-7′, and H-8′ (in both isomers).
  • 16
    • 84918300938 scopus 로고    scopus 로고
    • 3 solution of (Z)-II and (E)-II in an nmr pressure tube at 240°C followed by quick cooling.

* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.