期刊
SCIENCE CHINA-CHEMISTRY
卷 65, 期 10, 页码 1962-1967出版社
SCIENCE PRESS
DOI: 10.1007/s11426-022-1289-9
关键词
electro-organic chemistry; C-C coupling; polycyclic indols; Biaryls; dearomatization
资金
- Guangdong Basic and Applied Basic Research Foundation [2019A1515011743]
- Pearl River talent program of Guangdong Province (Youth Top-Notch Talent) [2017GC010302]
- Jinan University
A mild and practical protocol for selectively time-dependent dehydrogenative C-C coupling, as well as tandem coupling-cyclization reaction between indoles or/and other heteroaromatics via electrochemically oxidative process has been demonstrated. The reaction runs under noble catalyst, external oxidant and inert gas free condition, allowing tunable access to a wide variety of synthetically useful symmetrical or nonsymmetrical heteroarene with aggregation-induced emission (AIE), and polycyclic 3-D indole derivatives with aggregation-caused quenching (ACQ) fluorescence properties. Finally, preliminary mechanistic study indicated that tunable generation of indole cation under various electrolysis potential via regulating N-protecting group was the key to achieve cross-coupling between indoles and other heteroaromatics.
A mild and practical protocol for selectively time-dependent dehydrogenative C-C coupling, as well as tandem coupling-cyclization reaction between indoles or/and other heteroaromatics via electrochemically oxidative process has been demonstrated. The reaction runs under noble catalyst, external oxidant and inert gas free condition, allowing tunable access to a wide variety of synthetically useful symmetrical or nonsymmetrical heteroarene with aggregation-induced emission (AIE), and polycyclic 3-D indole derivatives with aggregation-caused quenching (ACQ) fluorescence properties. Finally, preliminary mechanistic study indicated that tunable generation of indole cation under various electrolysis potential via regulating N-protecting group was the key to achieve cross-coupling between indoles and other heteroaromatics.
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