Visible light-driven photocatalytic benzoyl azides formation from benzotrichlorides using rhodium ion modified TiO2
Visible light-driven photocatalytic benzoyl azides formation from benzotrichlorides using rhodium ion modified TiO2
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使用铑离子改性 TiO2 进行可见光驱动光催化从苯并三氯化物形成苯甲酰叠氮化物
DOI：
10.1016/j.jpap.2023.100170
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发表时间：
2023
影响因子：
--
通讯作者：
Shimakoshi Hisashi
中科院分区：
文献类型：
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作者：
Shichijo Keita;Shimakoshi Hisashi
报道了铑离子修饰的TiO 2（Rh 3 +/TiO 2）催化可见光驱动的苯甲酰叠氮化合物的合成。以TiO 2和RhCl 3·3 H2O为原料，通过简单的反应过程制备了Rh 3 +/TiO 2可见光催化剂。Rh 3 +/TiO 2在400 ~ 600 nm范围内具有较宽的可见光吸收。室温下，在可见光（λ ≥ 420 nm）照射下，Rh 3 +/TiO 2催化苯并咪唑和三甲基硅基叠氮（TMS-N3）反应生成苯甲酰叠氮。在该反应中，Rh 3 +/TiO 2的单电子转移（SET）有效地还原了苯并噻吩，并通过苯甲酰氯与TMS-N3反应生成了苯甲酰叠氮，产率为71%。此外，几个苯甲酰衍生物应用于此反应，并形成相应的苯甲酰叠氮衍生物，产率高达71%。对反应进行了动力学分析，结果表明SET是该反应的速率控制步骤。
Visible light-driven benzoyl azides formation catalyzed by a rhodium ion modified TiO2(Rh3+/TiO2) is reported. The Rh3+/TiO2was prepared as a visible light responsive photocatalyst by a simple procedure from TiO2and RhCl3･3H2O. The Rh3+/TiO2exhibited a broaden visible light absorption from 400 nm to 600 nm. Benzoyl azide formation from a benzotrichloride and a trimethylsilyl azide (TMS-N3) was performed catalyzed by the Rh3+/TiO2under visible light irradiation (λ ≥ 420 nm) in air at room temperature. In this reaction, the benzotrichloride was effectively reduced by the single electron transfer (SET) from the Rh3+/TiO2, and the benzoyl azide was produced in 71% yield via the reaction between the benzoyl chloride and TMS-N3. In addition, several benzotrichloride derivatives were applied to this reaction and the corresponding benzoyl azide derivatives were formed in up to 71% yield. A kinetic analysis was also performed on these reactions, and it was suggested that the SET is the rate determining step in this reaction.