Hashikawa Y, Sadai S, Murata Y. Reductive Decarbonylation of a Cage-Opened C
60 Derivative.
Org Lett 2021;
23:9495-9499. [PMID:
34806898 DOI:
10.1021/acs.orglett.1c03694]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The decarbonylation of a cage-opened C60 derivative was examined by employing single-electron reductants. During the reaction, an H2O molecule was spontaneously encapsulated inside the cage (up to 78%) through the thus-formed 14-membered-ring orifice even though the H2O encapsulation had long been considered to require an orifice consisting of at least 16 atoms. The crystallographic analysis revealed an orifice shape closer to a circle which significantly contributes to the decreased activation barrier for the H2O encapsulation.
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