Ruthenium-Catalyzed Oxidative Synthesis of N-(2-triazine)indoles by C-H Activation.

Ruthenium-Catalyzed Oxidative Synthesis of N-(2-triazine)indoles by C-H Activation.
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DOI:
10.3390/molecules28093676
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发表时间:
2023-04-24
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Liu W
Liu W
中科院分区:
其他
文献类型:
--
作者:
Zeng M;Chen J;Li F;Li H;Zhao L;Jiang D;Dai J;Liu W

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1,3,5 triazines, especially indole functionalized triazine derivatives, exhibit excellent activities, such as anti-tumor, antibacterial, and anti-inflammatory activities. Traditional methods for the synthesis of N-(2-triazine) indoles suffer from unstable materials and tedious operations. Transition-metal-catalyzed C-C/C-N coupling provides a powerful protocol for the synthesis of indoles by the C-H activation strategy. Here, we report the efficient ruthenium-catalyzed oxidative synthesis of N-(2-triazine) indoles by C-H activation from alkynes and various substituted triazine derivatives in a moderate to good yield, and all of the N-(2-triazine) indoles were characterized by 1H NMR, 13C NMR, and HRMS. This protocol can apply to the gram-scale synthesis of the N-(2-triazine) indole in a moderate yield. Moreover, the reaction is proposed to be performed via a six-membered ruthenacycle (II) intermediate, which suggests that the triazine ring could offer chelation assistance for the formation of N-(2-triazine) indoles.
铑催化苯酚氨基甲酸酯的选择性 C-H 活化/烯化反应
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