Electrochemical oxidative synthesis of 2-benzoylquinazolin-4(3H)-one via C(sp(3))-H amination under metal-free conditions

Hu Yongzhi; Ma Xinhua; Hou HuiqingSun WeimingTu ShuqingWu MeiLin RongkunXu XiuzhiKe Fang

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Electrochemical oxidative synthesis of 2-benzoylquinazolin-4(3H)-one via C(sp(3))-H amination under metal-free conditions

机译：电化学氧化的合成2-benzoylquinazolin-4 (3 h)——通过C - h (sp (3))氨基化不含金属的条件下

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An electrochemically induced C(sp(3))-H amination of 2-aminobenzamides with ketones using TBAI as a catalyst was developed, and provided 2-benzoylquinazolin-4(3H)-ones under metal-free conditions. The reaction proceeded using the relatively low-toxicity methanol as the solvent, employed molecular oxygen as the ideal green oxidant in a simple undivided cell, and exhibited high atom economy. The mechanism of this C(sp(3))-H amination strategy was concluded to involve generation of an acetophenone radical, and its easy further oxidation to form 2-oxo-2-phenylacetaldehyde.

机译：一个电化学诱导C - h氨基化(sp (3))与酮使用TBAI作为2-aminobenzamides催化剂的开发和提供不含金属的下2-benzoylquinazolin-4 (3 h)的条件。相对低毒甲醇作为溶剂,采用分子氧作为理想的绿色氧化剂在一个简单的细胞,并展出高的原子经济。C (sp (3)) - h氨基化策略的结论包括苯乙酮自由基的生成,及其容易形成的进一步氧化2-oxo-2-phenylacetaldehyde。

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来源
《Catalysis science & technology》 |2021年第19期|6374-6379|共6页
作者
Hu Yongzhi; Ma Xinhua; Hou HuiqingSun WeimingTu ShuqingWu MeiLin RongkunXu XiuzhiKe Fang;
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作者单位

Fujian Med Univ, Sch Pharm, Fujian Prov Key Lab Nat Med Pharmacol, Fuzhou 350004, Peoples R China;

Fujian Med Univ, Fujian Matern & Child Hlth Hosp, Affiliated Hosp, Fuzhou 350000, Peoples R China;

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正文语种英语
中图分类汉语教学;
关键词
METAL-FREE; Ketones; AminationAcetophenonesDioxygenSolventsCatalystsREACTIONLOW TOXICITY;

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Electrochemical oxidative synthesis of 2-benzoylquinazolin-4(3H)-one via C(sp(3))-H amination under metal-free conditions

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