Shutao Gao

Hebei Agricultural University

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NbCl₅-Catalyzed, Solvent-Free, One-Pot Synthesis of Coumarins

Synthetic Communications (2011)

Shutao Gao Chao Li Yan‐En Wang Jing‐Jun Ma Chun Wang

Abstract Abstract NbCl5 is found to be an efficient catalyst for the Pechmann condensation reaction of phenols and β-keto ester leading to the formation of coumarin derivatives in excellent yields under solvent-free conditions. The reaction protocol is simple and environmentally friendly. Keywords: Coumarins β-keto esterNbCl5 Pechmann condensationphenolssolvent-free ACKNOWLEDGMENTS This work was financially supported by the Natural Science Foundation of Hebei (B2011204051), the Scientific Research Foundation of Education Department of Hebei Province (2010137), and the Natural Science Foundation of the Agricultural University of Hebei (2009-001).

Environmentally Friendly

Condensation reaction

Reaction conditions

10.1080/00397911.2010.486514

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Citations (15)

Pd nanoparticles supported on a covalent triazine-based framework material: an efficient and highly chemoselective catalyst for the reduction of nitroarenes

New Journal of Chemistry (2018)

Jie Li Lihong Zhang Xiaotong Liu Ningzhao Shang Shutao Gao

Well-dispersed Pd nanoparticles supported on a triazine-based framework were prepared and the material displayed excellent catalytic activity for the transfer hydrogenation of nitroarenes.

Triazine

1,3,5-Triazine

Transfer hydrogenation

10.1039/c8nj01404c

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Citations (46)

NbCl₅as an Efficient Catalyst for Chemoselective Synthesis of 1,1-Diacetates Under Solvent-Free Conditions

Synthetic Communications (2009)

Shutao Gao Ying Zhao Chao Li Jing‐Jun Ma Chun Wang

Abstract Abstract A mild and efficient method for the chemoselective preparation of 1,1-diacetates catalyzed by NbCl5(5 mmol%) under solvent-free conditions has been developed. The yields are in the range of 93–98%. This protocol offered several advantages, including low catalyst loading, good yields, short reaction times, and environmentally friendliness. Keywords: Aldehydes1,1-diacetatesNbCl5 solvent-free conditions ACKNOWLEDGMENTS This work was financially supported by the Natural Science Foundation of the Agricultural University of Hebei.

Reaction conditions

10.1080/00397910802654674

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Citations (23)

Citric acid modified ultrasmall copper peroxide nanozyme for in situ remediation of environmental sulfonylurea herbicide contamination

Journal of Hazardous Materials (2022)

Dongchen Yang Jingqian Huo Zhe Zhang Zexiu An Haijiao Dong

Sulfonylurea

Ecotoxicity

Degradation

10.1016/j.jhazmat.2022.130265

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Citations (35)

Lumbosacral Echinococcosis

American Journal of Tropical Medicine and Hygiene (2023)

Shutao Gao Yukun Hu Weibin Sheng

FIGURE 1. (A) Preoperative body photograph.(B-D) Preoperative magnetic resonance imaging (MRI) and computed tomography scans showed expansile multicystic lesions and destruction of the L5 vertebra, sacrum, and coccyx.(E) Removed lesions.(F) Lamellar membranous structure confirmed the diagnosis of cystic echinococcosis (3100).(G and H) Body photograph and MRI at 5-month follow-up.

10.4269/ajtmh.22-0564

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Citations (0)

Atomically Dispersed Co Catalyst for Efficient Hydrodeoxygenation of Lignin-Derived Species and Hydrogenation of Nitroaromatics

ACS Catalysis (2020)

Longkang Zhang Ningzhao Shang Shutao Gao Junmin Wang Tao Meng

Single-atom catalysts (SACs) have attracted much attention due to their outstanding catalytic performance in heterogeneous catalysis. Here, we report a template sacrificial method to fabricate an atomically dispersed Co catalyst; three kinds of silica templates with different microstructures (MCM-41, SBA-15, and FDU-12) were employed and the effect of pore structure of the templates on the dispersity of Co was investigated. The catalysts fabricated with different templates presented different Co dispersities, leading to distinguishing catalytic performance. The optimized Co1@NC-(SBA) catalyst with atomically dispersed Co displayed outstanding catalytic activity for the hydrodeoxygenation (HDO) of lignin-derived species as well as the hydrogenation of various nitroaromatics. The reaction mechanism of the HDO of vanillin was investigated by using density functional theory calculations as well.

Hydrodeoxygenation

Dispersity

Template

10.1021/acscatal.0c00239

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Citations (166)

Pd supported on g-C₃N₄ nanosheets: Mott–Schottky heterojunction catalyst for transfer hydrogenation of nitroarenes using formic acid as hydrogen source

New Journal of Chemistry (2017)

Saisai Cheng Xu-Feng Meng Ningzhao Shang Shutao Gao Cheng Feng

Well-dispersed Pd nanoparticles anchored on g-C₃N₄ nanosheets displayed excellent catalytic activity for the transfer hydrogenation of nitroarenes.

Transfer hydrogenation

10.1039/c7nj04268j