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Volumn 46, Issue 43, 2005, Pages 7311-7314

Synthesis and properties of 1,6-methano[10]annuleno[3,4-c]thiophene and its 1,3-dicyano derivative

Author keywords

1,6 Methano 10 annulene; o Quinodimethane; Ring current; Thiophene; X ray crystallographic analysis

Indexed keywords

ANNULENE DERIVATIVE; PROTON; THIOPHENE DERIVATIVE;

EID: 25444531460     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2005.08.145     Document Type: Article
Times cited : (8)

References (22)
  • 3
    • 4644278634 scopus 로고    scopus 로고
    • C.B. Nielsen, and T. Bjonholm Org. Lett. 6 19 2004 3381 3384 and references cited therein
    • (2004) Org. Lett. , vol.6 , Issue.19 , pp. 3381-3384
    • Nielsen, C.B.1    Bjonholm, T.2
  • 14
    • 25444486961 scopus 로고    scopus 로고
    • note
    • 4S: 390.0674.
  • 15
    • 25444525420 scopus 로고    scopus 로고
    • note
    • -1, 3404 independent reflections, 163 parameters, R = 0.040 (I > 3σ(I), 1861 reflections), wR = 0.108, S = 1.277, T = 296 K. Estimated standard deviations for the bond lengths and angles are 0.004 (angstrom) and 0.2-0.3 (degrees), respectively, for the nonhydrogen atoms. Crystallographic data excluding structure has been deposited with the Cambridge Crystallographic Data Centre as supplementary publication numbers CCDC275147 for 1 and CCDC 275146 for 2, respectively. A copy of the data can be obtained free of charge from CCDC, 12 Union road, Cambridge CB2 1EZ, UK [Direct line: +44 1223 762910, fax: +44 (0)1223 336033 or e-mail: linstead@ccdc.cam.ac.uk ; deposit@ccdc.cam.ac.uk ].
  • 22
    • 25444438721 scopus 로고    scopus 로고
    • note
    • 1 only. We also obtained a transition state from the [8+2] adduct to 12 with the activation enthalpy of 10.9 kcal/mol. The process is slightly exothermic with 2.1 kcal/mol and is supported to be in equilibrium between them.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.