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Diaryl Ether Formation Merging Photoredox and Nickel Catalysis
Organometallics ( IF 2.5 ) Pub Date : 2021-04-01 , DOI: 10.1021/acs.organomet.1c00018 Le Liu 1 , Cristina Nevado 1
Organometallics ( IF 2.5 ) Pub Date : 2021-04-01 , DOI: 10.1021/acs.organomet.1c00018 Le Liu 1 , Cristina Nevado 1
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Photoredox and Ni catalysis are combined to produce diaryl ethers under mild conditions. A broad range of aryl halides and phenol derivatives are cross-coupled in the presence of a readily available organic photocatalyst and NiBr2(dtbpy). Symmetrical diaryl ethers have also been directly obtained from aryl bromides in the presence of water. Mechanistic investigations support the involvement of Ni(0) species at the outset of the reaction and a Ni(II)/Ni(III)-photocatalyzed single electron transfer process preceding the productive C(sp2)–OAr reductive elimination.
中文翻译：
二芳基醚形成合并光氧化还原和镍催化
Photoredox 和 Ni 催化在温和条件下结合产生二芳基醚。在容易获得的有机光催化剂和 NiBr 2 (dtbpy)存在下，广泛的芳基卤化物和苯酚衍生物交叉偶联。对称二芳基醚也已在水存在下由芳基溴化物直接获得。机理研究支持在反应开始时 Ni(0) 物质的参与以及在生产性 C(sp 2 )-OAr 还原消除之前的 Ni(II)/Ni(III) 光催化单电子转移过程。
更新日期：2021-04-01
中文翻译：
二芳基醚形成合并光氧化还原和镍催化
Photoredox 和 Ni 催化在温和条件下结合产生二芳基醚。在容易获得的有机光催化剂和 NiBr 2 (dtbpy)存在下，广泛的芳基卤化物和苯酚衍生物交叉偶联。对称二芳基醚也已在水存在下由芳基溴化物直接获得。机理研究支持在反应开始时 Ni(0) 物质的参与以及在生产性 C(sp 2 )-OAr 还原消除之前的 Ni(II)/Ni(III) 光催化单电子转移过程。
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