Aerobic oxidation of C-H bonds to carboxylic acids enabled by decatungstate photocatalysis

Aerobic oxidation of C-H bonds to carboxylic acids enabled by decatungstate photocatalysis
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十钨酸盐光催化将 C-H 键有氧氧化成羧酸

DOI:
10.1016/j.gresc.2021.10.003
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发表时间:
2021-10
期刊:
Green Synthesis and Catalysis
影响因子:
--
通讯作者:
Wenjing Xiao
Wenjing Xiao
中科院分区:
其他
文献类型:
--
作者:
Jing Liu;Wei Zhao;Liangqiu Lu;Yiyin Liu;Ying Cheng;Wenjing Xiao

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对二甲苯在钴、锰、溴离子催化体系下的直接好氧氧化法,被称为Amoco法,是工业上生产对苯二甲酸的重要工艺。然而,它仍然遭受着恶劣的条件和潜在的环境污染。在这里,我们公开了一种十钨酸光催化氧化烷基芳烃为羧酸的反应,具有温和绿色的条件(即,环境温度,可见光照射,大气中的O2为绿色氧化剂)。该催化剂可用于合成对苯二甲酸,具有很大的工业生产潜力。各种取代的甲苯衍生物具有很好的适用性,从而以良好的产率提供了酸和酯产品。
Direct aerobic oxidation ofp-xylene using cobalt, manganese and bromide ion catalyst system, named the Amoco method, is a fundamentally important process to produce terephthalic acid in industry. However, it still suffers from harsh conditions and potential environmental pollution. Herein, we disclose an aerobic oxidation of alkyl aromatics to carboxylic acids through decatungstate photocatalysis featuring mild and green conditions (i.e., ambient temperature, visible light irradiation and atmospheric O2as the green oxidant). It is scalable for the synthesis of terephthalic acid, which shows a significant potential for industrial production. Various substituted toluene derivatives were well applicable, thus furnishing acid and ester products in good yields.
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