American Chemical Society
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A Clue to Elusive Macrocycles:  Unusually Facile, Spontaneous Polymerization of a Hexagonal Diethynylbenzene Macrocycle

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journal contribution
posted on 2006-01-06, 00:00 authored by Akihiro Nomoto, Motohiro Sonoda, Yui Yamaguchi, Tomoyuki Ichikawa, Keiji Hirose, Yoshito Tobe
A hexagonal diethynylbenzene macrocycle having exterior octyloxymethyl groups undergoes spontaneous polymerization at room temperature to form hardly soluble materials, in contrast to the corresponding dehydrotetramer and dehydrooctamer, which are stable enough to show their melting points at higher than 140 °C.