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Volumn 82, Issue 4, 2010, Pages 871-878

Tetradehydrodinaphtho[10]annulene and its transformation into zethrene: A hitherto unknown dehydroannulene and a forgotten aromatic hydrocarbon

Author keywords

Alkynes; Cross coupling reactions; Dehydroannulenes; Polycyclic aromatic hydrocarbons; Transannular cyclization

Indexed keywords


EID: 77951813397     PISSN: 00334545     EISSN: 13653075     Source Type: Journal    
DOI: 10.1351/PAC-CON-09-10-12     Document Type: Conference Paper
Times cited : (34)

References (48)
  • 19
    • 37049104077 scopus 로고
    • Although the formation of 2a was invoked in the purported synthesis of dinaphtho[10]annulene too, this method is less practical than those reported in refs. [5,6]. See ref. [5b] and the following papers: (a) W. Kemp, I. T. Storie, C. D. Tulloch. J. Chem. Soc., Perkin Trans. 1 2812 (1980);
    • (1980) J. Chem. Soc., Perkin Trans , vol.1 , pp. 2812
    • Kemp, W.1    Storie, I.T.2    Tulloch, C.D.3
  • 20
    • 84987553912 scopus 로고
    • indeed, Mitchell and Sondheimer reported the formation of 2a from dinaphtho[10]annulene via 7,14-dihydrozethrene
    • (b) R. Gleiter, H. P. Schaaff, H. Rodewald, R. Jahn, H. Irngartinger. Helv. Chim. Acta 70, 480 (1987); indeed, Mitchell and Sondheimer reported the formation of 2a from dinaphtho[10]annulene via 7,14-dihydrozethrene:
    • (1987) Helv. Chim. Acta , vol.70 , Issue.480
    • Gleiter, R.1    Schaaff, H.P.2    Rodewald, H.3    Jahn, R.4    Irngartinger, H.5
  • 22
    • 77951796896 scopus 로고    scopus 로고
    • After our preliminary communication was published online, we were informed by Prof. Y. T. Wu of National Cheng Kung University that his group has discovered a more efficient way to prepare 7,14-diarylzethrene derivatives. We are grateful to Prof. Wu for sharing his results with us.
    • After our preliminary communication was published online, we were informed by Prof. Y. T. Wu of National Cheng Kung University that his group has discovered a more efficient way to prepare 7,14-diarylzethrene derivatives. We are grateful to Prof. Wu for sharing his results with us.
  • 27
    • 77951800440 scopus 로고    scopus 로고
    • note
    • For the geometry optimization, the B3LYP/6-31G(d) method is considered to give satisfactory results for annulenes [14]. For the NICS calculations, we employed the HF method as had been used in the original work of Schleyer [12], because this method had been shown to be most reliable to evaluate the chemical shifts (i.e., magnetic properties) of annulenes [14a].
  • 38
    • 77951779414 scopus 로고    scopus 로고
    • note
    • Representative patents include an electroluminescent device possessing a red light-emitting layer of 4,11-bis(phenylamino)- and 4,11-bis(diphenylamino) zethrene [W. Sotoyama, H. Sato, A. Matsuura. PCT Int. Appl. WO 03/002687, A1, (2003)] and organic transistor consisting of 7,14-bis[4-(4-hexyl-2-thienyl)-2- thienyl]zethrene [J. R. Moon. KR 2007101430, A, (2007)]. However, except for the first one, most of the patents do not report synthetic methods of zethrene derivatives.
  • 44
    • 0037152952 scopus 로고    scopus 로고
    • For ZINDO/S calculations for the HOMO-LUMO gaps of 2a (2.52 eV) and pentacene (2.40 eV), see: Y. Ruiz-Morales. J. Phys. Chem. A 106, 11283 (2002).
    • (2002) J. Phys. Chem. A , vol.106 , pp. 11283
    • Ruiz-Morales, Y.1
  • 45
    • 77951851006 scopus 로고    scopus 로고
    • Neither dilute solutions of 2c,d were sensitive to light and oxygen. When heated, solid samples of 2c,d started to decompose from 120 and 220 °C, respectively, and did not show melting points
    • Neither dilute solutions of 2c,d were sensitive to light and oxygen. When heated, solid samples of 2c,d started to decompose from 120 and 220 °C, respectively, and did not show melting points.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.