title: AgPd Nanoparticles Deposited on WO2.72Nanorods as an Efficient Catalyst for One-Pot Conversion of Nitrophenol/Nitroacetophenone into Benzoxazole/Quinazoline.
abstract: We report a seed-mediated growth of 2.3 nm AgPd nanoparticles (NPs) in the presence of 40 × 5 nm WO2.72nanorods (NRs) for the synthesis of AgPd/WO2.72composites. The strong interactions between AgPd NPs and WO2.72NRs make the composites, especially the Ag48Pd52/WO2.72, catalytically active for dehydrogenation of formic acid (TOF = 1718 h-1and Ea= 31 kJ/mol) and one-pot reactions of formic 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.
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Chao
authors.identifier: 0000-0002-4028-4250
authors.initials: C
authors.lastname: Yu
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Guo
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Zheng
authors.identifier: 0000-0003-3953-7772
authors.initials: Z
authors.lastname: Xi
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Michelle
authors.initials: M
authors.lastname: Muzzio
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Zhouyang
authors.initials: Z
authors.lastname: Yin
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Bo
authors.initials: B
authors.lastname: Shen
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Junrui
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Christopher T
authors.initials: CT
authors.lastname: Seto
authors.affiliation: Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States.
authors.forename: Shouheng
authors.identifier: 0000-0002-4051-0430
authors.initials: S
authors.lastname: Sun