Article
Chemistry, Physical
Mingyang Deng, Dingsheng Wang, Yadong Li
Summary: Selective hydrogenation of unsaturated aldehydes/ketones is a crucial reaction in the fine chemical industry. This review comprehensively discusses the adsorption and activation mechanism, as well as the influence of catalyst structures on selective hydrogenation. It also reviews the application of single-atom site catalysts and related catalysts in this process.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Applied
Xiaohua Li, Jiayuan Sun, Shanshan Shao, Xinggang Hu, Yixi Cai
Summary: A one-pot method for jet fuel production based on biomass-derived ketone platform compound was developed, effectively solving issues like poor catalyst reusability and side reactions. By controlling temperature, optimizing conditions, and adding organic solvents, a high yield of targeted hydrocarbons was achieved.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Physical
Hiroya Ishikawa, Min Sheng, Ayako Nakata, Kiyotaka Nakajima, Seiji Yamazoe, Jun Yamasaki, Sho Yamaguchi, Tomoo Mizugaki, Takato Mitsudome
Summary: In this study, a supported cobalt phosphide nanoalloy catalyst was developed for the selective hydrogenation of furfural derivatives, showing high efficiency and air stability without the need for H-2 pretreatment. Backdonation from Co d-electrons to the pi* orbital of furfural derivatives was found to play a key role in the highly efficient hydrogenation process.
Article
Energy & Fuels
Miao Zhang, Houang Long, Jing Lu, Mingming Zhang
Summary: This study presents a simple and effective method to prepare zeolite encapsulated Pt nanoparticles with high catalytic activity. The diffusion obstruction and catalytic activity of Pt@ZSM-48 can be adjusted through post-treatment.
Article
Energy & Fuels
Miao Zhang, Houang Long, Jing Lu, Mingming Zhang
Summary: This work presents a simple and effective strategy to prepare zeolite encapsulated Pt nanoparticles through one-pot method at high crystallization temperature. The obtained Pt@ZSM-48 combines the advantages of both highly active sites of Pt particle and controllable reactants diffusion of ZSM-48 miropores and exhibits high stability and catalytic activity even after calcination at 550 degrees C. After alkaline treatment, the diffusion obstruction of Pt@ZSM-48 can be greatly reduced, thereby increasing the conversion of 1,4-butynediol while maintaining high 1,4-butenediol selectivity. The diffusion obstruction and catalytic activity of Pt@ZSM-48 can be adjusted by post-treatment.
Article
Chemistry, Multidisciplinary
Jiye Wang, Yazhou Qin, Qiaocui Shi, Luhong Wen, Lei Bi
Summary: AgCl crystals with various morphologies were controllably prepared through a one-pot synthesis method using ethylene glycol as a solvent and AgNO3 as a precursor. The ionic liquid PDDA acted as a Cl- ion precursor and morphology-controlled stabilizer. The effects of temperature, ligand and precursor concentration on crystal growth were investigated, showing different morphological transformations with varying Cl- concentrations. The study provides insights into the growth mechanism of AgCl microcrystals and a new method for synthesizing AgCl crystals with tunable shapes.
Article
Chemistry, Multidisciplinary
Christof Bauer, Felix Mueller, Sercan Keskin, Mirijam Zobel, Rhett Kempe
Summary: This study presents a synthesis protocol for generating nanostructured earth abundant metal catalysts, which are efficient and selective in mediating important chemical reactions. By pyrolysis of an inexpensive metal precursor, an easy to synthesize N/C precursor, and a porous support material, the catalyst material can be obtained in a simple, single synthesis step. The application of this catalyst synthesis method successfully produced a highly active cobalt catalyst for the general and selective hydrogenation of aromatic heterocycles, with implications in organic synthesis and hydrogen storage.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Organic
Yogesh Sharma, Ganesh P. Pawar, Vinod D. Chaudhari
Summary: Benzothiazine 1,1-dioxide (BTDO), a privileged chemical motif, can be synthesized through a cost-effective and environmentally beneficial domino approach using a water-gas shift reaction (WGSR) with sodium 2-nitrobenzenesulfinates and alpha-bromo ketones. The optimized reaction conditions show remarkable chemical tolerance to various electronically and sterically diverse substituents on both coupling partners.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Yogesh Sharma, Ganesh P. Pawar, Vinod D. Chaudhari
Summary: This study presents a facile method for the synthesis of BTDO via a water-gas shift reaction. The method is cost-effective and exhibits remarkable chemical tolerance to a wide range of substituents.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ling Xu, Xilei Lyu, Yuxi Jiang, Xiwen Wei, Renfeng Nie, Xiuyang Lu
Summary: A new cascade catalytic system was developed for the one-pot production of FDM from glucose and polysaccharides, achieving high yields under mild reaction conditions. This system shows great potential for industrial applications in biomass transformation.
Article
Chemistry, Applied
Miaomiao Chen, Hailong Xu, Huili Zhao, Wei Bai, Min Ji
Summary: Selective hydrogenation of C=C double bond in alpha, beta-unsaturated carbonyl compounds is important for fine chemical production, and designing and preparing highly selective hydrogenation catalysts is crucial for industrialization. Controlling the steric hindrance between substrate molecules and catalysts is an effective strategy for achieving high selectivity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qinglin Liu, Jiayi Wu, Jiawei Kang, Qian Liu, Peisen Liao, Guangqin Li
Summary: Selective hydrogenation of alpha,beta-unsaturated aldehydes to obtain a high yield of unsaturated alcohols is important in industrial production. However, this is still a great challenge because the hydrogenation of C=C is thermally more favorable than the C=O bond. Various strategies have been developed to optimize catalysts for improving selectivity, but usually at the expense of catalytic activity. In this study, a series of Ir-M alloy nanoparticle catalysts were synthesized using the inert metal inducement strategy. The optimal catalyst, IrCd5, exhibited impressive catalytic performance in the selective hydrogenation of cinnamaldehyde, achieving high conversion and selectivity for cinnamal alcohol compared to the Ir counterpart. This study provides a new avenue for designing bimetal alloy catalysts for the selective hydrogenation of alpha,beta-unsaturated aldehydes.
Article
Chemistry, Multidisciplinary
Ariprasanth Ramalingam, Elavarasan Samaraj, Selvaraj Venkateshwaran, Sakkarapalayam Murugesan Senthilkumar, Gopal Chandru Senadi
Summary: Earth-abundant transition metal dichalcogenides (TMDs), especially molybdenum disulfide (MoS2), have been proven to be effective catalysts for improving the catalytic performance of heterogeneous catalysis in organic functional group conversion chemistry. In this study, a new method achieved 84% phase enrichment of 1T-MoS2 in aqueous medium, which provides the possibility for industrial applications. Furthermore, the catalytic behavior of 1T-MoS2 in the reduction of aromatic nitro compounds into aromatic amines was realized, showing high reproducibility, recyclability, and short reaction times.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Yi Zhang, Gang Zhang, Tong Chen
Summary: A highly active and stable nickel-based bimetallic carbon catalyst with an embedment structure was prepared using a facile one-pot thermal reduction method with the assistance of ethylene glycol dispersant. The Ni-Ru@MC catalyst exhibited higher catalytic capability in sorbitol production from ball-milled cellulose compared to traditional metal supported catalysts. The superior performance of Ni-Ru@MC was attributed to its mesoporous structure, small metal nanoparticles embedded in carbon, and a reasonable match between mild acidity and improved hydrogenation activity.
Article
Chemistry, Inorganic & Nuclear
Zheng Wang, Ning Ma, Xiaochi Lu, Ming Liu, Tian Liu, Qingbin Liu, Gregory A. Solan, Wen-Hua Sun
Summary: A series of manganese(i) carbonyl complexes with structurally related NN- and NNN-chelating ligands were synthesized and used as catalysts for transfer hydrogenation. The NN-systems based on N-R functionalized 5,6,7,8-tetrahydroquinoline-8-amines showed the highest catalytic activity in the conversion of acetophenone to 1-phenylethanol. The N-isopropyl derivative, Mn1, when combined with t-BuONa, achieved efficient reduction of acetophenone and various carbonyl substrates, with high TON values (up to 17,200; TOF of 3550 h(-1)). These findings support an outer-sphere mechanism for the hydrogen transfer and provide a sustainable alternative for producing alcoholic products from carbonyl substrates.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Rundong Li, Zhiming Ma, Tianhua Yang, Bingshuo Li, Lihong Wei, Yang Sun
JOURNAL OF SUPERCRITICAL FLUIDS
(2018)
Article
Chemistry, Multidisciplinary
Tao Song, Peng Ren, Zhiming Ma, Jianliang Xiao, Yong Yang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Physical
Tao Song, Zhiming Ma, Peng Ren, Youzhu Yuan, Jianliang Xiao, Yong Yang
Article
Chemistry, Organic
Tao Song, Zhiming Ma, Xiaoxue Wang, Yong Yang
Summary: The efficient synthesis of alpha-keto acids from alkenes using TBHP as oxidant and a bifunctional iron nanocomposite catalyst has been established. The catalyst showed outstanding stability for successive recycles with up to 80% yield.
Article
Chemistry, Organic
Tao Song, Qinglin Li, Zhiming Ma, Yong Yang
Summary: This review provides a summary of the major progress in the design and preparation of efficient and robust non-noble metal catalysts derived from various biomass feedstocks for green and sustainable organic synthesis. It focuses on catalytic hydrogenation transformations, particularly targeting nitro compounds, unsaturated C-C bonds, quinoline compounds, C=O bonds, and more. Challenges remaining in this research area are discussed, and feasible future research directions are proposed.
TETRAHEDRON LETTERS
(2021)
Article
Chemistry, Physical
Zhiming Ma, Shiqiang Liu, Nanfang Tang, Tao Song, Ken Motokura, Zhemin Shen, Yong Yang
Summary: The coexistence of Fe nanoclusters and Fe single atoms in N-doped porous carbon can significantly enhance the catalytic performance in the aerobic oxidation of primary amines to imines.
Article
Chemistry, Multidisciplinary
Zhiming Ma, Tao Song, Youzhu Yuan, Yong Yang