Synthesis and Properties of Cyclic meta-Phenyleneacetylene and Its Corresponding Cyclophane Polyone, (1,3)Cyclophanedecaone
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The cyclic <I>meta</I>-phenyleneacetylene (<B>3</B>) (CMPA) and its corresponding cyclophane polyones <B>4</B> and <B>5</B> are synthesized. <B>3</B>, a “missing link” between CMPA and CMPA, shows a fairly pronounced emission, indicating a rigid structure, whereas <B>5</B> is colorless in contrast to conventional diarylethane-1,2-diones owing to its conformational mobility and all-s-cis and twisted dione structure.
- Chemistry Letters
Chemistry Letters 37(7), 784-785, 2008
The Chemical Society of Japan