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| Photodimerization and photooxygenation of 9-vinylcarbazole catalyzed by titanium dioxide and magnesium perchlorate |
| Hajime Maedaa, Mio Yamamotob, Hideyuki Nakagawab, Kazuhiko Mizunob |
a Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan;
b Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan |
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Abstract Photoreaction of 9-vinylcarbazole in acetonitrile in the presence of titanium dioxide and a catalytic amount of magnesium perchlorate gave 3,6-di(9-carbazolyl)-1,2-dioxane as a photooxygenated product via photodimerization of 9-vinylcarbazole. The photoreaction proceeds via an electron transfer mechanism, where magnesium perchlorate accelerated formation of the photo-oxygenated product.
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Received: 15 July 2009
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| Fund:This work was financially supported by a Grant-in-Aid for Scientific Research on Priority Areas "Fundamental Science and Technology of Photofunctional Interfaces (417)"(Nos. 14050085, 15033264, 17029058) and the Cooperation for Innovative Technology and Advanced Research in Evolutional Area (CITYAREA) program from the Ministry of Education, Culture, Sports, Science and Technology of Japan.We also thank Ishihara Sangyo Co., Ltd. for donating the TiO2. |
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Corresponding Authors:
Hajime Maeda,E-mail address:maeda-h@t.kanazawa-u.ac.jp
E-mail: maeda-h@t.kanazawa-u.ac.jp
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