Synthesis and properties of partially overlapped [3.n](3,9)carbazolophanes

Chemistry Letters

Volumn 36, Issue 3, 2007, Pages 460-461

  Tani, Keita ^a   Yamamoto, Shinya ^a   Kubono, Koji ^a   Hori, Kazushige ^a   Tohda, Yasuo ^a   Takemura, Hiroyuki ^b   Nakamura, Yosuke ^c   Nishimura, Jun ^c   Benten, Hiroaki ^d   Ohkita, Hideo ^d   Ito, Shinzaburo ^d   Yamamoto, Masahide ^e  

^a OSAKA KYOIKU UNIVERSITY   (Japan)

^b JAPAN WOMEN'S UNIVERSITY   (Japan)

^c GUNMA UNIVERSITY   (Japan)

^d KYOTO UNIVERSITY   (Japan)

^e RITSUMEIKAN UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 34047261824     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2007.460     Document Type: Article

References (22)

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13. Purification of bis(3-formyl-9-carbazolyl)alkanes was not carried out, as the solubility of these compounds was low.
14. 74: mp 197.0-198.0°C, 7s: mp 113.0-114.0°C.
15. As dibromides 8n were unstable and easily polymerized, they were employed to the next cyclization reaction immediately.
16. G. Wen, M. Matsunaga, T. Matsunaga, H. Takemura, T. Shinmyozu, Synlett 1995, 947.
17. 1HNMR data of carbazolophanes were summarized in Supporting Information, http://www.csj.jp/journals/chem-lett/index.html.
18. Detailed reaction conditions of intramolecular dehydration reaction by PPTS (pyridinium p-toluenesulfonate) will be reported elsewhere.
19. 93: 155.0-156.5°C. 94: 222.0-224.0°C, 9s: 123.0-125.0°C.
20. -1, Rigaku AFC7R diffractometer, 1812 reflections with I > 2.0σ(I), R = 0.041, Rw = 0.126, CCDC 634984.
21. -1, Rigaku AFC7R diffractometer, 4556 reflections with I > 2.0σ(I), R = 0.053, Rw = 0.149, CCDC 634985. Two independent molecular structures were contained in unit lattice, and their geometry with respect to carbazole rings was similar with each other. Figure 1 illustrates the full structure of one of them.
22. L. J. Farrugia, J. Appl. Cryst. 1997, 30, 565.