您的检索：
学者姓名：曾程初
精炼检索结果：
年份
成果类型
收录类型
来源
综合
曾用名
合作者
语言
清除所有精炼条件
摘要 ：
报道了一种以二硒醚为硒基来源, 8-氨基喹啉为导向基的铜催化空气氧化的苯甲酸衍生物邻位C(sp~2)—H键的硒化反应.该方法仅需空气作为氧化剂,避免了额外的化学氧化剂的使用,同时具有较好的底物普适性和官能团兼容性.
关键词 ：
铜催化 铜催化 8-氨基喹啉 8-氨基喹啉 C—H键活化 C—H键活化 二硒醚 二硒醚 硒化 硒化
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 孙名扬 , 徐坤 , 郭兵兵 et al. 空气氧化的铜催化苯甲酸衍生物邻位C(sp~2)—H键的硒化反应 [J]. | 有机化学 , 2021 , 41 (06) : 2302-2309 . |
| MLA | 孙名扬 et al. "空气氧化的铜催化苯甲酸衍生物邻位C(sp~2)—H键的硒化反应" . | 有机化学 41 . 06 (2021) : 2302-2309 . |
| APA | 孙名扬 , 徐坤 , 郭兵兵 , 曾程初 . 空气氧化的铜催化苯甲酸衍生物邻位C(sp~2)—H键的硒化反应 . | 有机化学 , 2021 , 41 (06) , 2302-2309 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
An efficient copper-catalyzed vicinal C(sp(2)).H selenylation of benzoic acid dervatives is reported using diselenyl ether as selenyl resource, 8-aminoquinoline as the directing group. The protocol need only air as the terminal oxidant, avoiding the utilization of other external chemical oxidants, featuring good substrates generality and compatiblity of functional groups.
关键词 ：
8-aminoquinoline 8-aminoquinoline C-H activation C-H activation copper-catalyzed copper-catalyzed diselenyl ether diselenyl ether selenylation reaction selenylation reaction
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Sun, Mingyang , Xu, Kun , Guo, Bingbing et al. Copper-Catalyzed Vicinal C(sp(2))-H Selenylation of Benzoic Acid Derivatives Using Air as Oxidant [J]. | CHINESE JOURNAL OF ORGANIC CHEMISTRY , 2021 , 41 (6) : 2302-2309 . |
| MLA | Sun, Mingyang et al. "Copper-Catalyzed Vicinal C(sp(2))-H Selenylation of Benzoic Acid Derivatives Using Air as Oxidant" . | CHINESE JOURNAL OF ORGANIC CHEMISTRY 41 . 6 (2021) : 2302-2309 . |
| APA | Sun, Mingyang , Xu, Kun , Guo, Bingbing , Zeng, Chengchu . Copper-Catalyzed Vicinal C(sp(2))-H Selenylation of Benzoic Acid Derivatives Using Air as Oxidant . | CHINESE JOURNAL OF ORGANIC CHEMISTRY , 2021 , 41 (6) , 2302-2309 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Minisci反应是指亲核性的碳自由基与缺电子含氮芳杂环间发生的自由基取代反应,是构建新的碳-碳键的一种重要方法.另一方面,作为一种绿色合成的技术和手段,有机电合成近几年来再次受到人们的关注.介绍了近期电化学条件下Minisci反应的研究进展.
关键词 ：
Minisci反应 Minisci反应 光电化学 光电化学 有机电合成 有机电合成 氧化还原反应 氧化还原反应
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 孟薇 , 徐坤 , 郭兵兵 et al. 电化学条件下的Minisci反应研究进展 [J]. | 有机化学 , 2021 , 41 (07) : 2621-2635 . |
| MLA | 孟薇 et al. "电化学条件下的Minisci反应研究进展" . | 有机化学 41 . 07 (2021) : 2621-2635 . |
| APA | 孟薇 , 徐坤 , 郭兵兵 , 曾程初 . 电化学条件下的Minisci反应研究进展 . | 有机化学 , 2021 , 41 (07) , 2621-2635 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Organic electrosynthesis has been widely used as an environmentally conscious alternative to conventional methods for redox reactions because it utilizes electric current as a traceless redox agent instead of chemical redox agents. Indirect electrolysis employing a redox catalyst has received tremendous attention, since it provides various advantages compared to direct electrolysis. With indirect electrolysis, overpotential of electron transfer can be avoided, which is inherently milder, thus wide functional group tolerance can be achieved. Additionally, chemoselectivity, regioselectivity, and stereoselectivity can be tuned by the redox catalysts used in indirect electrolysis. Furthermore, electrode passivation can be avoided by preventing the formation of polymer films on the electrode surface. Common redox catalysts include N-oxyl radicals, hypervalent iodine species, halides, amines, benzoquinones (such as DDQ and tetrachlorobenzoquinone), and transition metals. In recent years, great progress has been made in the field of indirect organic electrosynthesis using transition metals as redox catalysts for reaction classes including C-H functionalization, radical cyclization, and cross-coupling of aryl halides-each owing to the diverse reactivity and accessible oxidation states of transition metals. Although various reviews of organic electrosynthesis are available, there is a lack of articles that focus on recent research progress in the area of indirect electrolysis using transition metals, which is the impetus for this review. (c) 2021 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
关键词 ：
Electrocatalyst Electrocatalyst Indirect electrolysis Indirect electrolysis Organic electrosynthesis Organic electrosynthesis Redox catalyst Redox catalyst Transition metal Transition metal
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Ma, Cong , Fang, Ping , Liu, Zhao-Ran et al. Recent advances in organic electrosynthesis employing transition metal complexes as electrocatalysts [J]. | SCIENCE BULLETIN , 2021 , 66 (23) : 2412-2429 . |
| MLA | Ma, Cong et al. "Recent advances in organic electrosynthesis employing transition metal complexes as electrocatalysts" . | SCIENCE BULLETIN 66 . 23 (2021) : 2412-2429 . |
| APA | Ma, Cong , Fang, Ping , Liu, Zhao-Ran , Xu, Shi-Shuo , Xu, Kun , Cheng, Xu et al. Recent advances in organic electrosynthesis employing transition metal complexes as electrocatalysts . | SCIENCE BULLETIN , 2021 , 66 (23) , 2412-2429 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Minisci reaction, an important method for the construction of new carbon-carbon bonds, refers to one kind of the radical substitution reactions between a nucleophilic carbon radical and an electron-deficient nitrogen-containing aromatic heterocycle. Besides, organic electrosynthesis is experiencing a renaissance as a green synthesis technology and means. This review focuses on the recent advances in Minisci reactions under electrochemical conditions.
关键词 ：
Minisci reactions Minisci reactions organic electrosynthesis organic electrosynthesis photoelectrochemistry photoelectrochemistry redox reactions redox reactions
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Meng Wei , Xu Kun , Guo Bingbing et al. Recent Advances in Minisci Reactions under Electrochemical Conditions [J]. | CHINESE JOURNAL OF ORGANIC CHEMISTRY , 2021 , 41 (7) : 2621-2635 . |
| MLA | Meng Wei et al. "Recent Advances in Minisci Reactions under Electrochemical Conditions" . | CHINESE JOURNAL OF ORGANIC CHEMISTRY 41 . 7 (2021) : 2621-2635 . |
| APA | Meng Wei , Xu Kun , Guo Bingbing , Zeng Chengchu . Recent Advances in Minisci Reactions under Electrochemical Conditions . | CHINESE JOURNAL OF ORGANIC CHEMISTRY , 2021 , 41 (7) , 2621-2635 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Organic electrosynthesis has gained increasing research interest as it harvests electric current as redox regents, thereby providing a sustainable alternative to conventional approaches. Compared with direct electrosynthesis, indirect electrosynthesis employs mediator(s) to lower the overpotentials for substrate activation, and enhance the reaction efficiency and functional group compatibility by shifting the heterogenous electron transfer process to be homogenous. As one of the most versatile and cost-efficient mediators, halogen mediators are always combined with an irreversible halogenation reaction. Thus, the electrochemical reaction between halogen mediators and substrates doesn't directly controlled by the two standard potentials difference. In this account, our recent developments in the area of halogen-mediated indirect electrosynthesis are summarized. The anodically generated halogen species from halogenide salts have the abilities to undergo electron-transfer (ET) or hydrogen-atom- transfer (HAT) processes. The reaction features, scopes, limitations, and mechanistic rationalisations are discussed in this account. We hope our studies will contribute to the future developments to broaden the scope of halogen-mediated electrosynthesis.
关键词 ：
halogen mediator halogen mediator halogen radical halogen radical indirect electrosynthesis indirect electrosynthesis Organic electrosynthesis Organic electrosynthesis
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Lian Fei , Xu Kun , Zeng Chengchu . Indirect Electrosynthesis with Halogen Ions as Mediators. [J]. | Chemical record , 2021 . |
| MLA | Lian Fei et al. "Indirect Electrosynthesis with Halogen Ions as Mediators." . | Chemical record (2021) . |
| APA | Lian Fei , Xu Kun , Zeng Chengchu . Indirect Electrosynthesis with Halogen Ions as Mediators. . | Chemical record , 2021 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明提供了一种卤素离子为电催化剂合成布洛芬中间体的方法。它包括如下步骤：在单室电解池中，将4‑异丁基苯丙酮、醇和卤化物混合，通电进行恒电流电解反应，即得到如式Ⅰ所示的布洛芬酯；式Ⅰ中，R为甲基或乙基。本发明方法采用原甲酸三甲酯和甲醇(或原甲酸三乙酯和乙醇)的混合溶剂，导电性增强，电极不会被不导电的物质覆盖，无需间隔一段时间交换电极，操作简单，成本低；不需外加高氯酸锂等昂贵的电解质，使用价廉的酸作为电解质；工作电极使用的是常见、便宜的石墨片，不锈钢网等，使得成本大大降低；使用无机卤化物为电催化剂，降低反应过程中的毒害性。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 曾程初 , 郭永婷 , 徐坤 . 一种卤素离子为电催化剂合成布洛芬中间体的方法 : CN202011621086.1[P]. | 2020-12-31 . |
| MLA | 曾程初 et al. "一种卤素离子为电催化剂合成布洛芬中间体的方法" : CN202011621086.1. | 2020-12-31 . |
| APA | 曾程初 , 郭永婷 , 徐坤 . 一种卤素离子为电催化剂合成布洛芬中间体的方法 : CN202011621086.1. | 2020-12-31 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
轴手性联芳基化合物是有机配体、有机催化剂、天然产物和药物分子的核心骨架,建立方便、高效、可规模化制备该类化合物的方法十分重要. 联芳基化合物的合成可通过芳基卤化物与芳基金属化合物的交叉偶联反应[1](Scheme 1a)或2-萘酚的不对称氧化偶联反应[2](Scheme 1b)等途径来实现.在第一种方法中,由于原料芳基金属化合物需要预先由芳基卤化物与金属反应来制备,因此,芳基卤代物的直接还原偶联的方法更为简洁、高效.
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 蒋洋叶 , 曾程初 . 镍催化的轴手性联芳基化合物不对称电化学合成 [J]. | 有机化学 , 2020 , 40 (9) : 2999-3000 . |
| MLA | 蒋洋叶 et al. "镍催化的轴手性联芳基化合物不对称电化学合成" . | 有机化学 40 . 9 (2020) : 2999-3000 . |
| APA | 蒋洋叶 , 曾程初 . 镍催化的轴手性联芳基化合物不对称电化学合成 . | 有机化学 , 2020 , 40 (9) , 2999-3000 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了1‑乙酰氨基金刚烷的电化学合成方法。它包括如下步骤：在单室电解池中，金刚烷和溶剂混合，通电进行恒电流电化学反应，即得到1‑乙酰氨基金刚烷。本发明采用恒电流电解方法，该方法所需设备成本低，更适合工业化生产；不需外加大量的高氯酸盐或四氟硼酸盐等支持电解质，并且质子酸可以循环利用；反应不需要加入大量浓硫酸等氧化剂，对环境污染小，避免了高浓度废酸水的产生和排放，后处理方便。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 曾程初 , 张洛莎 . 1-乙酰氨基金刚烷的电化学合成方法 : CN202011621122.4[P]. | 2020-12-31 . |
| MLA | 曾程初 et al. "1-乙酰氨基金刚烷的电化学合成方法" : CN202011621122.4. | 2020-12-31 . |
| APA | 曾程初 , 张洛莎 . 1-乙酰氨基金刚烷的电化学合成方法 : CN202011621122.4. | 2020-12-31 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
An efficient protocol for the electrochemical synthesis of thiazole derivatives has been developed. Initially, cyclic voltammetry (CV) measure and preparative electrolysis were performed to examine that halide ions and tetrachlorohydroquinone (TCHQ) are able to serve as redox catalysts for the transformation of TCHQ to tetrachloroquinone (TCQ) and 2,5-dihydrothiazoles to thiazoles, respectively. Next, a combination of bromide ion and TCHQ was employed successfully for the electrochemical synthesis of several representative thiazole derivatives in moderate to good yields. Finally, a possible reaction mechanismis proposed. The work may provide a practical protocol for the electrochemical synthesis of TCQ and thiazoles. (C) 2020 Elsevier B.V. All rights reserved.
关键词 ：
Cyclic voltammetry Cyclic voltammetry Electrochemical synthesis Electrochemical synthesis Halide ions as redox catalyst Halide ions as redox catalyst Tetrachlorohydroquinone as redox catalyst Tetrachlorohydroquinone as redox catalyst Thiazoles Thiazoles
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Yong , Sun, Cao-Cao , Zeng, Cheng-Chu . Electrochemical synthesis of thiazoles from 2,5-dihydrothiazolines mediated by bromide/tetrachlorohydroquinone dual redox catalysts [J]. | JOURNAL OF ELECTROANALYTICAL CHEMISTRY , 2020 , 861 . |
| MLA | Li, Yong et al. "Electrochemical synthesis of thiazoles from 2,5-dihydrothiazolines mediated by bromide/tetrachlorohydroquinone dual redox catalysts" . | JOURNAL OF ELECTROANALYTICAL CHEMISTRY 861 (2020) . |
| APA | Li, Yong , Sun, Cao-Cao , Zeng, Cheng-Chu . Electrochemical synthesis of thiazoles from 2,5-dihydrothiazolines mediated by bromide/tetrachlorohydroquinone dual redox catalysts . | JOURNAL OF ELECTROANALYTICAL CHEMISTRY , 2020 , 861 . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
