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oe1(光电查) - 科学论文

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  • Data on the convenient fabrication of carbon doped WO3? ultrathin nanosheets for photocatalytic aerobic oxidation of amines at room temperature

    摘要： The oxidation of amines to imines is an important chemical transformation. In this article, we report original data on the synthesis of carbon doped WO3 (cid:1) x ultrathin nanosheets via an acid-assisted one-pot process, which exhibit excellent photocatalytic activity in the aerobic oxidation of amines to corresponding imines under visible light irradiation at room temperature. The composition, microstructure, morphology, photocatalytic activity of the corresponding samples and possible mechanism are included here.

    关键词： Ultrathin nano-sheet,Photocatalytic activity,Aerobic oxidation

    更新于2025-09-23 15:22:29

  • Aerobic α‐Oxidation of N‐Substituted Tetrahydroisoquinolines to Dihydroisoquinolones via Organo‐photocatalysis

    摘要： An efficient visible-light-induced α-oxidation of N-substituted tetrahydroisoquinolines to dihydroisoquinolones has been developed using eosin Y as an organo-photocatalyst and oxygen as a green oxidant. The reactions were carried out under mild reaction conditions; the desired dihydroisoquinolones were obtained in up to 96% yield at room temperature under oxygen atmosphere. This transformation provides a convenient route to dihydroisoquinolones with a wide range of substrates.

    关键词： photoredox catalysis,lactams,dihydroisoquinolones,aerobic oxidation

    更新于2025-09-23 15:19:57

  • Application of an electron-transfer catalyst in light-induced aerobic oxidation of alcohols

    摘要： The first heterogeneous photocatalysis system including a bipyridinium-based complex as the electron-transfer catalyst was developed for aerobic oxidation of alcohols without the use of any noble-metal, external N-oxide or peroxide co-oxidant. The current work provides an efficient strategy for alcohol oxidation through a cost-effective, convenient and eco-friendly route.

    关键词： bipyridinium complex,aerobic oxidation,heterogeneous photocatalysis,alcohols,electron-transfer catalyst

    更新于2025-09-19 17:15:36

  • Convenient Fabrication of Carbon Doped WO3-x Ultrathin Nanosheets for Photocatalytic Aerobic Oxidation of Amines

    摘要： It is an important chemical transformation for oxidation of amines to imines, on account of very important versatile applications of imines in organic synthesis. Here, we develop a convenient way to synthesize carbon doped WO3-x ultrathin nanosheets via an acid-assisted one-pot process. The carbon doped WO3-x ultrathin nanosheets exhibit excellent photocatalytic activity in the aerobic oxidation of amines to corresponding imines under visible light irradiation at room temperature. The high catalytic performance is attributed to remarkable visible light absorption ability and effective absorption of molecular oxygen and substrates. Rich oxygen-vacancies existing in the carbon doped WO3-x ultrathin nanosheets may play an important role, because oxygen-vacancies not only change the band structure but also act as catalytic sites to activate molecular oxygen by photoproduct electrons to generate superoxide radicals. Both photoproduct holes and superoxide radicals play important role for the oxidation of amines.

    关键词： Aerobic oxidation,Carbon dropping,WO3-x,Nanosheets,Photocatalytic

    更新于2025-09-10 09:29:36