AgX@carbon (X = Br and I) as robust and efficient catalysts for the reaction of propargylic alcohols and CO2 to carbonates under ambient conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54020-54026 ◽  
Author(s):  
Jikuan Qiu ◽  
Yuling Zhao ◽  
Huiyong Wang ◽  
Guokai Cui ◽  
Jianji Wang
Keyword(s):  
Ambient Conditions ◽  
Efficient Catalyst ◽  
Propargylic Alcohols ◽  
Highly Efficient

An easily prepared AgX@C material was found to be a highly efficient catalyst for transforming CO2 into carbonates.

A highly stable MnII phosphonate as a highly efficient catalyst for CO2 fixation under ambient conditions

2018 ◽  
Vol 54 (14) ◽  
pp. 1758-1761 ◽  
Author(s):  
Yang Yang ◽  
Chao-Ying Gao ◽  
Hong-Rui Tian ◽  
Jing Ai ◽  
Xue Min ◽  
...  
Keyword(s):  
Co2 Fixation ◽  
Chemical Conversion ◽  
Cyclic Carbonates ◽  
Ambient Conditions ◽  
Efficient Catalyst ◽  
Highly Efficient ◽  
Efficient Performance

A highly stable microporous MnII phosphonate is rationally designed and it exhibits highly efficient performance in the context of CO2 chemical conversion into cyclic carbonates under ambient conditions.

SO3H-functionalized Zeolite-Y as an Efficient Nanocatalyst for the Synthesis of Nbenzimidazole- 2-aryl-4-thiazolidinones and tri-substituted Imidazoles

2020 ◽  
Vol 17 (2) ◽  
pp. 117-130 ◽  
Author(s):  
Mehdi Kalhor ◽  
Zohre Zarnegar ◽  
Zahra Seyedzade ◽  
Soodabeh Banibairami
Keyword(s):  
Zeolite Y ◽  
Internal Standard ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Reaction Rates ◽  
Ambient Conditions ◽  
Catalytic Method ◽  
Efficient Catalyst ◽  
Bet Analysis ◽  
Ft Ir

Background: SO3H-functionalized zeolite-Y was prepared and used as a catalyst for the synthesis of 2-aryl-N-benzimidazole-4-thiazolidinones and tri-substituted imidazoles at ambient conditions. Objective: The goals of this catalytic method include excellent yields and high purity, inexpensive procedure and ease of product isolation, the use of nontoxic and heterogeneous acid catalyst, shorter reaction times and milder conditions. Materials and Methods: NMR spectra were recorded on Brucker spectrophotometer using Me4Si as internal standard. Mass spectra were recorded on an Agilent Technology 5975C VL MSD with tripe-axis detector. FTIR spectra were obtained with KBr disc on a galaxy series FT-IR 5000 spectrometer. The surface morphology of nanostructures was analyzed by FE-SEM (EVO LS 10, Zeiss, Carl Zeiss, Germany). BET analysis were measured at 196 °C by a Japan Belsorb II system after the samples were vacuum dried at 150°C overnight. Results: The NSZ was characterized by FT-IR, FESEM, EDX, XRF, and BET. The catalytic activity of NSZ was investigated for synthesis of 1,3-tiazolidin-4-ones in H2O/Acetone at room temperature. Moreover, NSZ was used for synthesis of tri-substituted imidazoles at 60 °C via solvent-free condensation. Different kinds of aromatic aldehydes were converted to the corresponding of products with good to excellent yields. Conclusion: Sulfonated zeolite-Y was as an efficient catalyst for the preparation of N-benzimidazole-2-aryl-1,3- thiazolidin-4-ones and 2,4,5-triaryl-1H-imidazoles. High reaction rates, elimination toxic solvent, simple experimental procedure and reusability of the catalyst are the important features of this protocol.

Sulfidation of MoO3/γ-Al2O3 towards a highly efficient catalyst for CH4 reforming with H2S

2021 ◽  
Author(s):  
Hao Wang ◽  
Jingxian Wu ◽  
Zhihuang Xiao ◽  
Zhejie Ma ◽  
Ping Li ◽  
...  
Keyword(s):  
Structural Evolution ◽  
Efficient Catalyst ◽  
Highly Efficient ◽  
Ch4 Reforming

The structural evolution of MoO3/γ-Al2O3 during sulfidation and a subsequent CH4/H2S reforming reaction is revealed, and the structure–performance relationships are established.

A Central Role of Nitrogen Atoms in a Highly Efficient Catalyst for Cathodic Hydrogen Evolution

ChemSusChem ◽  
2021 ◽  
Author(s):  
Meng-Jie Zhao ◽  
Sheng-Ying Su ◽  
Ning Deng ◽  
Jun-Qing Shi ◽  
Fang Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Efficient Catalyst ◽  
Highly Efficient ◽  
Cathodic Hydrogen Evolution

ChemInform Abstract: FeCl3: Highly Efficient Catalyst for Synthesis of α-Amino Nitriles.

ChemInform ◽  
2010 ◽  
Vol 41 (30) ◽  
pp. no-no
Author(s):  
Majid M. Heravi ◽  
Mojgan Ebrahimzadeh ◽  
Hossein A. Oskooie ◽  
Bita Baghernejad
Keyword(s):  
Efficient Catalyst ◽  
Highly Efficient

Binuclear iron(III) octakis(perfluorophenyl)tetraazaporphyrin μ-oxodimer: a highly efficient catalyst for biomimetic oxygenation reactions

2014 ◽  
Vol 55 (41) ◽  
pp. 5687-5690 ◽  
Author(s):  
Mekhman S. Yusubov ◽  
Cumali Celik ◽  
Margarita R. Geraskina ◽  
Akira Yoshimura ◽  
Viktor V. Zhdankin ◽  
...  
Keyword(s):  
Efficient Catalyst ◽  
Highly Efficient ◽  
Binuclear Iron

Highly efficient hydrolysis of ammonia borane by anion (−OH, F−, Cl−)-tuned interactions between reactant molecules and CoP nanoparticles

2017 ◽  
Vol 53 (4) ◽  
pp. 705-708 ◽  
Author(s):  
Zi-Cheng Fu ◽  
Yong Xu ◽  
Sharon Lai-Fung Chan ◽  
Wei-Wei Wang ◽  
Fang Li ◽  
...  
Keyword(s):  
High Performance ◽  
Ammonia Borane ◽  
Ambient Conditions ◽  
Highly Efficient ◽  
Performance System ◽  
Hydrolysis Of ◽  
Nanoparticle Catalyst

An anion-assisted hydrolytic H2-releasing ultra-high performance system involving ammonia borane and a CoP nanoparticle catalyst has been established under ambient conditions.

Sign in / Sign up

Export Citation Format

Share Document