Ligand free copper(I)-catalyzed synthesis of diaryl ether with Cs2CO3 via a free radical path

Chen Hong-Jie; Tseng Mei-Chun; Hsu I-Jui; Chen Wei-Ting; Han Chien-Chung; Shyu Shin-Guang

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Ligand free copper(I)-catalyzed synthesis of diaryl ether with Cs2CO3 via a free radical path

机译：配体游离铜（I）通过自由基路径与Cs2CO3催化合成二芳基醚

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Complexes [Cu(I)(2,4-dimethylphenoxy)(2)](-) (A) and [Cu(II)(2,4-dimethylphenoxy)(2)(p-tolyl)](-) (B) were observed by in situ electrospray ionization mass spectrometry (ESI-MS) analysis of the ligand free copper(I)-catalyzed C-O coupling reaction using Cs2CO3 under the catalytic reaction conditions indicating that they could be intermediates in the reaction. The radical scavenger cumene retarded the reaction. Catalytic cycles involving a free radical path are proposed based on these observations.

机译：配合物[Cu（I）（2,4-二甲基苯氧基）（2）]（-）（A）和[Cu（II）（2,4-二甲基苯氧基）（2）（对甲苯基）]（-）（B通过原位电喷雾电离质谱（ESI-MS）分析在催化反应条件下使用Cs2CO3进行的无配体铜（I）催化的CO偶联反应观察到，表明它们可能是反应的中间体。自由基清除剂异丙基苯延缓了反应。基于这些观察结果，提出了涉及自由基路径的催化循环。

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《Dalton transactions: An international journal of inorganic chemistry》 |2015年第27期|共5页
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Chen Hong-Jie; Tseng Mei-Chun; Hsu I-Jui; Chen Wei-Ting; Han Chien-Chung; Shyu Shin-Guang;
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1. Ligand free copper(I)-catalyzed synthesis of diaryl ether with Cs2CO3 via a free radical path [J] . Chen Hong-Jie, Tseng Mei-Chun, Hsu I-Jui, Dalton transactions: An international journal of inorganic chemistry . 2015,第27期

机译：配体游离铜（I）通过自由基路径与Cs2CO3催化合成二芳基醚
2. Nano copper oxide catalyzed synthesis of symmetrical diaryl sulfides under ligand free conditions [J] . K Harsha Vardhan Reddy, V Prakash Reddy, A Ashwan Kumar, Beilstein journal of organic chemistry. . 2011,第1期

机译：无配体条件下纳米氧化铜催化对称二芳基硫醚的合成
3. Ligand-free copper-catalyzed O-arylation of arenesulfonamides with phenols: An unusual approach to biaryl ether synthesis [J] . Chen Junmin, Wang Junmin, Chen Xida, Synthetic Communications . 2019,第5a8期

机译：与酚醛氟磺酰胺的无配体铜催化的O-芳基化合物：苯甲酸醚合成的不寻常方法
4. Recoverable Nanoparticle Palladium(O) Catalyzed Sonogashira Reaction Under Ligand, Copper and Amine Free Reaction Conditions [C] . 7th International Symposium on Green Chemistry in China(7th ISGCC'2005) . 2005

机译：在无配体，无铜和无胺的条件下可回收的纳米级钯（O）催化的Sonogashira反应
5. Synthesis of Novel Benzimidazolium Perfluoro Model Compounds Using Free Radical Reactions and Synthesis of Novel Ligands Subject to Both Free Radical and Romp Polymerization Reactions for Fabricating Anion-Exchange Membranes [D] . Jiang, Shengdong 2018

机译：利用自由基反应合成新型苯并咪唑全氟模型化合物以及经受自由基和隆起聚合反应的新型配体的合成，以制备阴离子交换膜。
6. Nano copper oxide catalyzed synthesis of symmetrical diaryl sulfides under ligand free conditions [O] . K Harsha Vardhan Reddy, V Prakash Reddy, A Ashwan Kumar, 2011

机译：无配体条件下纳米氧化铜催化对称二芳基硫醚的合成
7. Nano copper oxide catalyzed synthesis of symmetrical diaryl sulfides under ligand free conditions [O] . Reddy, K Harsha Vardhan, Reddy, V Prakash, Kumar, A Ashwan, 2011

机译：无配体条件下纳米氧化铜催化对称二芳基硫醚的合成

Ligand free copper(I)-catalyzed synthesis of diaryl ether with Cs2CO3 via a free radical path

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