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Communication | Special issue | Vol 80, No. 2, 2010, pp.909-915
Published online, 14th October, 2009
DOI: 10.3987/COM-09-S(S)122
Synthesis and π-Amphoteric Properties of Tris(tetrathiafulvaleno)hexadehydro[12]annulene

Kenji Hara, Masashi Hasegawa, Yoshiyuki Kuwatani, Hideo Enozawa, and Masahiko Iyoda*

*Graduate School of Science, Tokyo Metropolitan University, 1-1, Minami-ohsawa, Hachioji, Tokyo 192-0364, Japan

Abstract

The Sonogashira coupling reaction of the diiodide 6 of 1,2-[4,5-bis(butylthio)tetrathiafulvalenyl]ethyne with 4,5-bis(ethynyl)-4’,5’-bis(butylthio)tetrathiafulvanene 5 produced the corresponding tris(tetrathiafulvaleno)hexadehydro[12]annulene 1 in moderate yield. The [12]annulene 1 exhibits multi-redox behavior and solvatochromism in the neutral state.