Synthesis and basic properties of tetrathieno [2, 3-a: 3′, 2′-c: 2 ″, 3 ″-f: 3‴, 2‴-h] naphthalene: a new π-conjugated system obtained by photoinduced …

A Yamamoto, E Ohta, N Kishigami, N Tsukahara…

Index: Yamamoto, Atsushi; Ohta, Eisuke; Kishigami, Nao; Tsukahara, Norihiro; Tomiyori, Yusuke; Sato, Hiroyasu; Matsui, Yasunori; Kano, Yusuke; Mizuno, Kazuhiko; Ikeda, Hiroshi Tetrahedron Letters, 2013 , vol. 54, # 31 p. 4049 - 4053

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Citation Number: 6

Abstract

A method for the synthesis of tetrathieno [2, 3-a: 3′, 2′-c: 2 ″, 3 ″-f: 3‴, 2‴-h] naphthalene (3), utilizing photoinduced electrocyclization–dehydrogenation reactions of tetra (3-thienyl) ethene (1), was developed. Photoirradiation of a toluene or CHCl3 solution of 1, containing a small amount of I2, leads to modestly efficient production of 3. In contrast to the UV–vis absorption property of the typical p-type organic transistor material pentacene, ...

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