Trifluoromethyl-substituted photochromic indolylfulgide. A remarkably durable fulgide towards photochemical and thermal treatments

Chemistry Letters

Volumn , Issue 12, 1996, Pages 1037-1038

  Yokoyama, Yasushi ^a   Takahashi, Kazuyuki ^a  

^a YOKOHAMA NATIONAL UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0002060770     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1996.1037     Document Type: Article

References (17)

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4. a) Y. Yokoyama, T. Yamane, and Y. Kurita, J. Chem. Soc., Chem. Commun., 1991, 1722;
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7. T. Inoue, R. Inaba, Y. Yokoyama, and Y. Kurita, unpublished results.
8. A. Tomoda, H. Tsuboi, A. Kaneko, and R. Matsushima, Nippon Kagaku Kaishi, 1993, 209.
9. The furyl-, thienyl-and indolylfulgides with a t-butyl group instead of the trifluoromethyl group have been synthesized. a) J. Kiji, T. Okano, H. Kitamura, Y. Yokoyama, S. Kubota, and Y. Kurita, Bull. Chem. Soc. Jpn., 68, 616 (1995);
10. b) S. Uchida, Y. Yokoyama, J. Kiji, T. Okano, and H. Kitamura, Bull. Chem. Soc. Jpn., 68, 2961 (1995). However, the former two were found not so stable as 3 towards the photochromic repetition.
11. T. R. Forbus, Jr. and J. C. Martin, J. Org. Chem., 44, 313 (1979).
12. 3: 363.1082. The synthetic yield was not optimized.
13. Y. Yokoyama, T. Inoue, M. Yokoyama, T. Goto, T. Iwai, N. Kera, I. Hitomi, and Y. Kurita, Bull. Chem. Soc. Jpn., 67, 3297 (1994).
14. -3, film thickness 30 μm. UV light; 405 nm. Visible light; 559 nm.
15. -3 in PMMA, film thickness 67 μm. Temperature; 80°C.
16. a) M. Irie, O. Miyatake, K. Uchida, and T. Eriguchi, J. Am. Chem. Soc., 116, 9894 (1994) and the references cited therein;
17. b) G. M. Tsivgoulis and J. -M. Lehn, Angew. Chem., Int. Ed. Engl., 34, 1119 (1995) and the references cited therein.