Wang, Yingying; Li, Peihe; Wang, Jinghui; Liu, Zhifei; Wang, Yin; Lu, Ye; Liu, Ying; Duan, Limei; Li, Wanfei; Sarina, Sarina; Zhu, Huaiyong; Liu, Jinghai published the artcile< Visible-light photocatalytic selective oxidation of C(sp3)-H bonds by anion-cation dual-metal-site nanoscale localized carbon nitride>, SDS of cas: 2725-82-8, the main research area is iron phosphotungstate dual metal site fabricated carbon nitride photocatalyst; ketone preparation alkane alc selective oxidation photochem.
Here, a heterogeneous photocatalytic alkanes C-H bonds oxidation method under the irradiation of visible light (λ = 425 nm) at ambient temperature using an anion-cation dual-metal-site modulated carbon nitride was reported. The optimized cation (C) of Fe3+ or Ni2+, with an anion (A) of phosphotungstate (PW123-) constitutes the nanoscale dual-metal-site (DMS). With a Fe-PW12 dual-metal-site as a model, a A-C DMS nanoscale localized carbon nitride (A-C/g-C3N4) exhibiting a highly enhanced photocatalytic activity with a high product yield (86% conversion), selectivity (up to 99%), and a wide functional group tolerance (52 examples) was demonstrated. The carbon nitride performs the roles of both the visible light response, and improves the selectivity for the oxidation of C(sp3)-H bonds to carbonyl groups, along with the function of A-C DMS in promoting product yield. Mechanistic studies indicate that this reaction follows a radical pathway catalyzed by a photogenerated electron and hole on A-C/g-C3N4 that is mediated by the tBuO ̇and tBuOO ̇radicals. Notably, a 10 g scale reaction was successfully achieved for alkane photocatalytic oxidation to the corresponding product with a good yield (80% conversion), and high selectivity (95%) under natural sunlight at ambient temperature In addition, this A-C/g-C3N4 photocatalyst is highly robust and can be reused at least six times and the activity is maintained.
Catalysis Science & Technology published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 2725-82-8 belongs to class bromides-buliding-blocks, and the molecular formula is C8H9Br, SDS of cas: 2725-82-8.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary