Epoxidation of olefins enabled by an electro-organic system

被引：29

作者：

Dong, Kai ^{[1
,2
]}

Wang, Yuanyuan ^{[3
,4
]}

Zhang, Longcheng ^{[1
]}

Fan, Xiaoya ^{[1
]}

Li, Zerong ^{[1
]}

Zhao, Donglin ^{[1
,2
]}

Yue, Luchao ^{[1
]}

Sun, Shengjun ^{[5
]}

Luo, Yongsong ^{[1
]}

Liu, Qian ^{[6
]}

Alshehri, Abdulmohsen Ali ^{[7
]}

Li, Quan ^{[2
]}

Ma, Dongwei ^{[3
,4
]}

Sun, Xuping ^{[1
,5
]}

机构：

[1] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China

[2] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Sichuan, Peoples R China

[3] Henan Univ, Key Lab Special Funct Mat, Minist Educ, Kaifeng 475004, Henan, Peoples R China

[4] Henan Univ, Sch Mat Sci & Engn, Kaifeng 475004, Henan, Peoples R China

[5] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China

[6] Chengdu Univ, Inst Adv Study, Chengdu 610106, Sichuan, Peoples R China

[7] King Abdulaziz Univ, Fac Sci, Chem Dept, POB 80203, Jeddah 21589, Saudi Arabia

来源：

GREEN CHEMISTRY | 2022年 / 24卷 / 21期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN-PEROXIDE; ORGANIC ELECTROSYNTHESIS; SELECTIVE EPOXIDATION; ALKENES;

D O I：

10.1039/d2gc02885a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Renewable electricity-driven organic electrosynthesis processes, with enhanced energy conversion efficiencies and reduced carbon footprints, for high-value organic chemicals production are enticing chemists to complement or even supplant traditional industrial synthesis routes. Despite being regularly lauded, electrosynthesis remains a very under-used procedure in organic chemical laboratories and industry. Olefin oxidation chemistry plays an essential role in manipulating organics and the resulting epoxides are widely used as feedstocks and intermediates in industry. Here, we describe an electro-organic system with a phase-separated membrane-electrode assembly strategy, coupling in situ H2O2 electrogeneration and olefin epoxidation, that delivers pure solvent-only epoxide solutions with energy conversion efficiencies >90%, consuming only H2O and O-2 under ambient conditions. Specifically, the electrocatalytically generated H+ and HO2-, from H2O oxidation and O-2 reduction, are recombined to form H2O2 using an ionic conductor, acting as the oxidizing agent for olefin epoxidation. Using engineered efficient catalysts, we demonstrate broad substrate scope and extendable reactions for downstream organic synthesis involving H2O2.

引用

页码：8264 / 8269

页数：6

共 33 条

[1]

Bailey F.E., 1990, Alkylene oxides and Their Polymers, DOI 10.1201/9781003066569

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