The Practical Method to Synthesize Gold Nanoparticles Supported on Hydrotalcite and Application on Oxidation and Hydration Reactions

Yao, Wei; Wu, Qiang; Huang, Ronghui; Zhang, Yilin; Yang, Yongchun; Zhang, Liang; Wang, Dawei

doi:10.1002/slct.201902730

Cited by 5 publications

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References 93 publications

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“…Our group has engaged in developing heterogeneous catalysts for dehydrogenation and hydrogen-borrowing reactions that are recyclable, such as polymer Zr-CIA, 17 POP-Ir, 18 Cu(binap)I] 2 , 19 TTA-Au-NG, 20 NQ-MR, 21 and Au@HT. 22 However, some catalytic systems are effective as catalysts, but demonstrate poor recyclability and stability, for example, catalysts with noble metal cores, such as iridium and gold, while others have reduced catalytic ability after several cycles. Inspired by this, we decided to study nanorods as heterogeneous catalysts in hydrogen-borrowing reactions and in the synthesis of tert- butyl esters, a functional group present in many natural products, polymers, and pharmaceuticals.…”

Section: Introductionmentioning

confidence: 99%

Silver/manganese dioxide nanorod catalyzed hydrogen-borrowing reactions and tert-butyl ester synthesis

Luo

Yang

et al. 2021

Journal of Chemical Research

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Silver/manganese dioxide (Ag@MnO2) nanorods are synthesized and characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy. It was discovered that Ag@MnO2 nanorods can realize hydrogen-borrowing reactions in high yields and are also effective for the synthesis of tert-butyl esters from aryl cyanides and tert-butyl hydroperoxide in a short period of time. Mechanistic experiments revealed that this catalytic system acts as a Lewis acid in hydrogen-borrowing reactions, while the synthesis of tert-butyl esters occurs through a radical pathway. This is the first report on the excellent catalytic activity of Ag@MnO2 nanorods as a catalyst.

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Section: Introductionmentioning

confidence: 99%

Silver/manganese dioxide nanorod catalyzed hydrogen-borrowing reactions and tert-butyl ester synthesis

Luo

Yang

et al. 2021

Journal of Chemical Research

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Metal‐Organic Frameworks of Cu₃(BTC)₂ Catalyzed Cascade C‐H Activation/C‐S Coupling/C‐O Cyclization Reaction Strategy: One‐Pot Efficient Synthesis of Phenoxathiines

et al. 2019

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A novel synthetic strategy of cascade C−H activation/C−S coupling/C−O cyclization reaction by using metal organic framework material Cu3(BTC)2 as catalyst is investigated. In this method, Cu3(BTC)2 can effectively catalyze the hydroxylation of the ortho‐Csp2‐H of benzenethiol, and then the coupling reaction and intramolecular C−O coupling cyclization. Phenoxathiine derivatives are efficiently prepared by one‐pot method. In our work, a series of phenoxathiin derivatives were obtained in good yield by this method. At the same time, the reaction mechanism was explored through conditional control experiments.

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Base‐Catalyzed Hydration of Silicon‐Containing Activated Alkynes: The Effect of Substituents at the Triple Bond

2020

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Metal‐catalyzed hydration of alkynes is rapidly developing research direction in organic synthesis. However, base‐catalyzed hydration of activated acetylenes remains much less studied. In contrast to the metal‐catalyzed reactions leading to carbonyl compounds, base‐catalyzed hydration gives vinyl ethers of different structure or cyclic products depending on the nature of substituents. So, it is found that 1,4‐diazabicyclo [2.2.2]octane (DABCO)‐catalyzed hydration of trimethylsilylated electron‐deficient alkynes of general formula Me3SiC≡CCOX (X=Ph, NR1R2, OEt) proceeds at room temperature to afford push‐pull divinyl ethers in 56–94 % yields, while 4‐trimethylsilyl‐3‐butyne‐2‐one (X=Me) reacts non‐selectively delivering both symmetrical and unsymmetrical divinyl ethers (dimerization products). Contrary to ketones, amides and esters, 3‐trimethylsilylpropynal gives under the same conditions 4H‐pyran, as we shown earlier.

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The Practical Method to Synthesize Gold Nanoparticles Supported on Hydrotalcite and Application on Oxidation and Hydration Reactions

Cited by 5 publications

References 93 publications

Silver/manganese dioxide nanorod catalyzed hydrogen-borrowing reactions and tert-butyl ester synthesis

Silver/manganese dioxide nanorod catalyzed hydrogen-borrowing reactions and tert-butyl ester synthesis

Metal‐Organic Frameworks of Cu₃(BTC)₂ Catalyzed Cascade C‐H Activation/C‐S Coupling/C‐O Cyclization Reaction Strategy: One‐Pot Efficient Synthesis of Phenoxathiines

Base‐Catalyzed Hydration of Silicon‐Containing Activated Alkynes: The Effect of Substituents at the Triple Bond

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The Practical Method to Synthesize Gold Nanoparticles Supported on Hydrotalcite and Application on Oxidation and Hydration Reactions

Cited by 5 publications

References 93 publications

Silver/manganese dioxide nanorod catalyzed hydrogen-borrowing reactions and tert-butyl ester synthesis

Silver/manganese dioxide nanorod catalyzed hydrogen-borrowing reactions and tert-butyl ester synthesis

Metal‐Organic Frameworks of Cu3(BTC)2 Catalyzed Cascade C‐H Activation/C‐S Coupling/C‐O Cyclization Reaction Strategy: One‐Pot Efficient Synthesis of Phenoxathiines

Base‐Catalyzed Hydration of Silicon‐Containing Activated Alkynes: The Effect of Substituents at the Triple Bond

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Metal‐Organic Frameworks of Cu₃(BTC)₂ Catalyzed Cascade C‐H Activation/C‐S Coupling/C‐O Cyclization Reaction Strategy: One‐Pot Efficient Synthesis of Phenoxathiines