Hashikawa Yoshifumi, Kizaki Kazuro, Murata Yasujiro
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
Chem Commun (Camb). 2021 May 27;57(43):5322-5325. doi: 10.1039/d1cc01662h.
A cage-opened C60 derivative was found to undergo an unusual annulative orifice-closure reaction under high-pressure conditions, in which the orifice size changed from a 16- to a 13-membered ring. The structure was different from that obtained by the reaction at 1 atm. The theoretical calculations suggested that the formation of the former one is thermodynamically favored.
发现一种笼状开口的C60衍生物在高压条件下会发生异常的环化孔口闭合反应，其中孔口尺寸从16元环变为13元环。其结构与在1个大气压下反应得到的结构不同。理论计算表明，前者的形成在热力学上更有利。
