AgPd Nanoparticles Deposited on WO<sub>2.72</sub> Nanorods as an Efficient Catalyst for One-Pot Conversion of Nitrophenol/Nitroacetophenone into Benzoxazole/Quinazoline
作者:Chao Yu、Xuefeng Guo、Zheng Xi、Michelle Muzzio、Zhouyang Yin、Bo Shen、Junrui Li、Christopher T. Seto、Shouheng Sun
DOI:10.1021/jacs.7b01983
日期:2017.4.26
acid, 2-nitrophenol, and aldehydes into benzoxazoles in near quantitative yields under mild conditions. The catalysis can also be extended to the one-pot reactions of ammonium formate, 2-nitroacetophenone, and aldehyde for high yield syntheses of quinazolines. Our studies demonstrate a new catalyst design to achieve a green chemistry approach to one-pot reactions for the syntheses of benzoxazoles and quinazolines
我们报告了在 40 × 5 nm WO2.72 纳米棒 (NRs) 存在下 2.3 nm AgPd 纳米粒子 (NPs) 的种子介导生长,用于合成 AgPd/WO2.72 复合材料。AgPd NPs 和 WO2.72 NRs 之间的强相互作用使复合材料,尤其是 Ag48Pd52/WO2.72,对甲酸脱氢(TOF = 1718 h-1 和 Ea = 31 kJ/mol)和一锅反应具有催化活性在温和条件下以接近定量的产率将甲酸、2-硝基苯酚和醛转化为苯并恶唑。该催化作用还可以扩展到甲酸铵、2-硝基苯乙酮和醛的一锅反应,用于高产率合成喹唑啉。我们的研究展示了一种新的催化剂设计,可实现苯并恶唑和喹唑啉合成的一锅法反应的绿色化学方法。