Consecutive C–H and O 2 Activation at a Pt(II) Center To Produce Pt(IV) Aryls

Consecutive C–H and O 2 Activation at a Pt(II) Center To Produce Pt(IV) Aryls
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Pt(II) 中心连续 C–H 和 O 2 活化生成 Pt(IV) 芳基

DOI:
10.1021/acs.organomet.8b00662
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发表时间:
2018
期刊:
影响因子:
2.8
通讯作者:
Vedernikov, Andrei N.
Vedernikov, Andrei N.
中科院分区:
化学2区
文献类型:
--
作者:
Watts, David;Zavalij, Peter Y.;Vedernikov, Andrei N.

文献摘要

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苯和一系列富电子和贫电子芳烃的有氧C-H官能化已经使用由磺化CNN螯合钳形配体支撑的Pt(II)水络合物在湿2,2,2-三氟乙醇(TFE)溶液中在20 °C和空气或O2的环境压力下进行了证明。该反应导致Pt(IV)芳基羟基络合物和Pt(IV)三氟乙氧基络合物作为两种主要产物,以1:1的摩尔比,沿着少量Pt(II)产物的芳烃和钳形配体氧化C-C偶联。
Aerobic C–H functionalization of benzene and a series of electron-rich and electron-poor arenes has been demonstrated using a Pt(II) aqua complex supported by a sulfonated CNN-chelating pincer ligand in wet 2,2,2-trifluoroethanol (TFE) solutions at 20 °C and ambient pressure of air or O2. The reaction results in Pt(IV) aryl hydroxo complexes and a Pt(IV) trifluoroethoxo complex as two major products, in a 1:1 molar ratio, along with minor Pt(II) products of the arene and pincer ligand oxidative C–C coupling.