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Volumn 8, Issue 4, 2012, Pages 1280-1287

Why cyclooctatetraene is highly stabilized: The importance of "two-way" (double) hyperconjugation

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EID: 84859611710     PISSN: 15499618     EISSN: 15499626     Source Type: Journal    
DOI: 10.1021/ct3000553     Document Type: Article
Times cited : (53)

References (110)
  • 2
    • 84979186465 scopus 로고
    • The difficulty of characterizing liquid compounds well (e.g. through boiling points, refractive indexes, and densities) and the possiblility of polycyclic isomer formation raised doubts about Willstätter's results (see: Baker, W. J. Chem. Soc. 1945, 258-267) until his synthesis was repeated and verified by Cope in 1948 (Cope, A. C. Overberger, C. G. J. Am. Chem. Soc. 1948, 70, 1433-1437). As the determination of the D 2 d structure of COT lay in the future, Willstätter assumed COT to have a planar structure and rationalized its unexpected olefinic (rather than aromatic) behavior by an imaginative (but now amusingly quaint) explanation. He invoked the centric benzene model of Claus (Claus, A. Theoretische Betrachtungen und deren Anwendungen zur Systematik der Organischen Chemie; Freiburg, Germany, 1867; p 207), Armstrong (Armstrong, H. E. J. Chem. Soc. 1887, 51, 258-268), and Baeyer (Baeyer, A. Ann. Chem. 1887, 245, 103-190;Ann. Chem. 1888, 251, 257-311).
    • 2 d structure of COT lay in the future (see below), Willstätter assumed COT to have a planar structure and rationalized its unexpected olefinic (rather than aromatic) behavior by an imaginative (but now amusingly quaint) explanation. He invoked the "centric" benzene model of Claus (Claus, A. Theoretische Betrachtungen und deren Anwendungen zur Systematik der Organischen Chemie; Freiburg, Germany, 1867; p 207), Armstrong (Armstrong, H. E. J. Chem. Soc. 1887, 51, 258-268), and Baeyer (Baeyer, A. Ann. Chem. 1887, 245, 103-190; Ann. Chem. 1888, 251, 257-311), which assumed that the six "extra" valences of benzene extended from each of the carbons toward the ring center where they were "saturated" by their centric interactions. The 1/3 larger radius of the planar eight-membered COT ring diminished the possibility of centric "saturation" compared to that of the six-membered benzene ring. According to Willstätter, this difference was responsible for the olefinic behavior of the double bonds of COT.
    • (1913) Chem. Ber. , vol.46 , pp. 517-527
    • Willstätter, R.1    Heidelberger, M.2
  • 4
    • 0010065421 scopus 로고
    • Cyclooctatetraene
    • In; Interscience Publishers, Inc. New York
    • Raphael, R. A. Cyclooctatetraene. In Nonbenzenoid Aromatic Compounds; Interscience Publishers, Inc.: New York, 1959; p 465.
    • (1959) Nonbenzenoid Aromatic Compounds , pp. 465
    • Raphael, R.A.1
  • 6
    • 84859596402 scopus 로고
    • In; Academic Press: New York, Vol.
    • Snyder, J. P. In Nonbenzenoid Aromatics; Academic Press: New York, 1969; Vol. 1, p 29.
    • (1969) Nonbenzenoid Aromatics , vol.1 , pp. 29
    • Snyder, J.P.1
  • 13
  • 19
    • 0003438540 scopus 로고
    • In, 3 rd ed. Cornell University Press: Ithaca, NY
    • Pauling, L. In The Nature of the Chemical Bond, 3 rd ed.; Cornell University Press: Ithaca, NY, 1960; p 196.
    • (1960) The Nature of the Chemical Bond , pp. 196
    • Pauling, L.1
  • 22
    • 0000773271 scopus 로고
    • d)(H) group increment based on fully conjugation-stabilized anti -dienes.
    • d)(H) group increment based on fully conjugation-stabilized anti -dienes.
    • (1993) Chem. Rev. , vol.93 , pp. 2419-2438
    • Cohen, N.1    Benson, S.W.2
  • 25
    • 0003780688 scopus 로고
    • Equation 4 is an evaluation based on the experimental heats of formation of COT (71.13 kcal/mol, from), cyclooctane (-29.7 kcal/mol, from; 2 nd ed. Chapman and Hall: New York), and cis -cyclooctene (-4.57 kcal/mol, from
    • Equation 4 is an evaluation based on the experimental heats of formation of COT (71.13 kcal/mol, from http://cccbdb.nist.gov/), cyclooctane (-29.7 kcal/mol, from Pedley, J. B.; Naylor, R. D.; Kirby, S. P. Thermochemical Data of Organic Compounds, 2 nd ed.; Chapman and Hall: New York, 1986,), and cis -cyclooctene (-4.57 kcal/mol, from
    • (1986) Thermochemical Data of Organic Compounds
    • Pedley, J.B.1    Naylor, R.D.2    Kirby, S.P.3
  • 61
    • 77954925957 scopus 로고    scopus 로고
    • Mo, Y. Nature 2010, 2, 666-671
    • (2010) Nature , vol.2 , pp. 666-671
    • Mo, Y.1
  • 67
  • 68
    • 0043268851 scopus 로고    scopus 로고
    • Mo, Y. J. Chem. Phys. 2003, 119, 1300-1306
    • (2003) J. Chem. Phys. , vol.119 , pp. 1300-1306
    • Mo, Y.1
  • 70
    • 4043080456 scopus 로고    scopus 로고
    • Mo, Y. J. Org. Chem. 2004, 69, 5563-5567
    • (2004) J. Org. Chem. , vol.69 , pp. 5563-5567
    • Mo, Y.1
  • 106
    • 33846991987 scopus 로고    scopus 로고
    • Based on QTAIM, a bond critical point indicative of "H-H bonding" is present between the bay H's of planar biphenyl. See support for the classical viewpoint
    • Based on QTAIM, a bond critical point indicative of "H-H bonding" is present between the bay H's of planar biphenyl. See support for the classical viewpoint: Poater, J.; Visser, R.; Solá, M.; Bickelhaupt, F. M. J. Org. Chem. 2007, 72, 1134-1142
    • (2007) J. Org. Chem. , vol.72 , pp. 1134-1142
    • Poater, J.1    Visser, R.2    Solá, M.3    Bickelhaupt, F.M.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.