One-step direct oxidation of fullerene-fused alkoxy ethers to ketones for evaporable fullerene derivatives.
One-step direct oxidation of fullerene-fused alkoxy ethers to ketones for evaporable fullerene derivatives.
复制标题
富勒烯稠合烷氧基醚一步直接氧化制取酮,得到可蒸发的富勒烯衍生物。
DOI:
10.1038/s42004-021-00511-4
复制
发表时间:
2021-05-21
影响因子:
5.9
通讯作者:
Matsuo, Yutaka
中科院分区:
文献类型:
--
作者:
Lin, Hao-Sheng;Ma, Yue;Xiang, Rong;Manzhos, Sergei;Jeon, Il;Maruyama, Shigeo;Matsuo, Yutaka
Ketones are widely applied moieties in designing functional materials and are commonly obtained by oxidation of alcohols. However, when alcohols are protected/functionalized, the direct oxidation strategies are substantially curbed. Here we show a highly efficient copper bromide promoted one-step direct oxidation of benzylic ethers to ketones with the aid of a fullerene pendant. Mechanistic studies unveil that fullerene can serve as an electron pool proceeding the one-step oxidation of alkoxy group to ketone. In the absence of the fullerene pendant, the unreachable activation energy threshold hampers the direct oxidation of the alkoxy group. In the presence of the fullerene pendant, generated fullerene radical cation can activate the neighbour C–H bond of the alkoxy moiety, allowing a favourable energy barrier for initiating the direct oxidation. The produced fullerene-fused ketone possesses high thermal stability, affording the pin-hole free and amorphous electron-transport layer with a high electron-transport mobility. Fullerenes are intrinsically electron deficient species which can facilitate challenging transformations in organic chemistry. Here fullerene-fused alkoxy ethers are shown to undergo copper-promoted oxidation by single electron transfer to the corresponding ketones via a fullerene radical cation intermediate.
登录
查看更多内容
影响因子:
8.4
作者:
Collavini, Silvia;Kosta, Ivet;Luis Delgado, Juan
通讯作者:
Luis Delgado, Juan
影响因子:
4.4
作者:
Eyring, H
通讯作者:
Eyring, H
影响因子:
5.2
作者:
Hashiguchi, Masahiko;Obata, Naoki;Matsuo, Yutaka
通讯作者:
Matsuo, Yutaka
影响因子:
2.1
作者:
Iranpoor, N;Firouzabadi, H;Pourali, AR
通讯作者:
Pourali, AR
影响因子:
15
作者:
He, Youjun;Chen, Hsiang-Yu;Li, Yongfang
通讯作者:
Li, Yongfang