Preparation and characteristic properties of 1,4-bis(3-guaiazulenylmethylium)benzene bishexafluorophosphate

Chemistry Letters

Volumn , Issue 9, 1999, Pages 999-1000

  Takekuma, Shin Ichi ^a   Sasaki, Masato ^a   Takekuma, Hideko ^a   Yamamoto, Hiroshi ^b  

^a KINKI UNIVERSITY   (Japan)

^b OKAYAMA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0033248577     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1999.999     Document Type: Article

References (19)

1. Partly presented at the 28th Symposium on Structural Organic Chemistry, Hiroshima, November 1998, Abstr. No. 3P49 (p. 327).
2. Partly presented at the 76th Meeting of Japan Chemical Society, Kanagawa, March 1999, Abstr. No. 3 PB 060 (p. 1441).
3. The reaction conditions are currently under intensive investigation.
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15. 3COOD): δ 172.9, 162.2, 158.8, 154.0, 151.9(C-6′,6″), 148.5(C-2′,2″). 147.4, 145.4(C-5′,5″), 142.2, 141.3(CH-1,4), 139.6(C-8′,8″), 134.5(C-2,3,5,6), 40.6((CH3)2CH-7′,7″), 30.0(Me-4′,4″), 24.0(CR3)2CH-7′,7″), and 14.1(Me-1′,1″).
16. 6a indicating that those protons of 3 exist on the coplanar as the 1,4-bismethylium carbons, respectively.
17. S. Takekuma, H. Takekuma, Y. Hatanaka, J. Kawaguchi, and H. Yamamoto, Nippon Kagaku Kaishi, 1998, 275.
18. For a comparative purpose, the oxidation potential (E/V vs. SCE) using ferrocene as a standard material showed +0.43 V by DPV and +0.44 V by CV under the same electrochemical conditions as those for compound 3.
19. pa) and-1.79 V.