A four-component coupling reaction of carbon dioxide, amines, cyclic ethers and 3-triflyloxybenzynes for the synthesis of functionalized carbamates

2018 ◽  
Vol 54 (46) ◽  
pp. 5835-5838 ◽  
Author(s):  
Wenfang Xiong ◽  
Chaorong Qi ◽  
Ruixiang Cheng ◽  
Hao Zhang ◽  
Lu Wang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Coupling Reaction ◽  
Cyclic Ethers ◽  
First Time

A novel four-component coupling reaction of carbon dioxide, amines, cyclic ethers and 3-triflyloxybenzynes for the synthesis of functionalized carbamates has been developed for the first time.

Umpolung Coupling of Pyridine-2-carboxaldehydes and Propargylic Carbonates via N-Heterocyclic Carbene/Palladium Synergetic Catalysis

2021 ◽  
Author(s):  
Weiyang Bi ◽  
Yunhui Yang ◽  
Song Ye ◽  
Congyang Wang
Keyword(s):  
Palladium Catalyst ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Cooperative Catalysis ◽  
Cross Coupling Reaction ◽  
First Time

The umpolung cross-coupling reaction of pyridine-2-carboxaldehydes and propargylic carbonates has been developed for the first time through N-heterocyclic carbene/palladium cooperative catalysis with the judicious selections of the palladium catalyst, ligand...

Research of Graphic User Interface of Carbon Dioxide Emission Evaluation Model in Construction Life Cycle Based on Matlab

2013 ◽  
Vol 689 ◽  
pp. 546-550
Author(s):  
Xue Hong Gan ◽  
Wei Wang ◽  
Shi Mei Liu
Keyword(s):  
Carbon Dioxide ◽  
Life Cycle ◽  
Evaluation Model ◽  
Carbon Dioxide Emission ◽  
Graphic User Interface ◽  
Property Management ◽  
Low Carbon ◽  
Management Responsibility ◽  
Residential Quarter ◽  
First Time

To build carbon dioxide emission evaluation model in construction life cycle is the key link to make low-carbon research of theoretical studies head towards practical application. For the first time, residential quarter is selected as the object in the study, carbon dioxide emission management responsibility of owner and property being considered and carbon dioxide emission evaluation model in construction life cycle based on matlab as well as database of carbon dioxide factor being built initially. Net carbon dioxide emission information will be shown timely, then carbon dioxide emission and absorption can be adjusted by property management accordingly.

scholarly journals Low-temperature and purification-free stereocontrolled ring-opening polymerisation of lactide in supercritical carbon dioxide

2020 ◽  
Vol 22 (7) ◽  
pp. 2197-2202 ◽  
Author(s):  
Simon P. Bassett ◽  
Andrew D. Russell ◽  
Paul McKeown ◽  
Isabel Robinson ◽  
Thomas R. Forder ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Low Temperature ◽  
Supercritical Carbon Dioxide ◽  
Ring Opening ◽  
Solvent Free ◽  
Free Ring ◽  
First Time ◽  
Supercritical Carbon

A stereoselective, solvent-free ring-opening polymerisation (ROP) of lactide (LA) in supercritical carbon dioxide (scCO2) is reported for the first time.

scholarly journals Hydrogenation of carbon dioxide to methanol using a homogeneous ruthenium–Triphos catalyst: from mechanistic investigations to multiphase catalysis

2015 ◽  
Vol 6 (1) ◽  
pp. 693-704 ◽  
Author(s):  
Sebastian Wesselbaum ◽  
Verena Moha ◽  
Markus Meuresch ◽  
Sandra Brosinski ◽  
Katharina M. Thenert ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mechanistic Investigations ◽  
Organometallic Catalyst ◽  
First Time ◽  
Hydrogenation Of Carbon Dioxide ◽  
Hydrogenation Of Co

The hydrogenation of CO2 to methanol using a recyclable molecular organometallic catalyst in the absence of an alcohol additive is demonstrated for the first time.

Catalytic performance of a series of guanidinium-based ionic liquids in the coupling reaction of carbon dioxide with epoxides

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87036-87043 ◽  
Author(s):  
Ping Li ◽  
Ya Li ◽  
Ci Chen ◽  
Li Wang ◽  
Jinglai Zhang
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquids ◽  
Cycloaddition Reaction ◽  
Coupling Reaction ◽  
Catalytic Performance

The cycloaddition reaction of CO2 into EO, catalyzed by a series of functional guanidinium-based ionic liquids, is schematically studied by the DFT.

Carbon Dioxide-Promoted Three-Component Strecker Reaction

2021 ◽  
Author(s):  
Ruslan V. Fauziev ◽  
Roman E. Ivanov ◽  
Ilya Kuchurov ◽  
Sergei Grigorievich Zlotin
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Strecker Reaction ◽  
First Time ◽  
Supercritical Carbon

Three-component Strecker reaction of aldehydes, amines and KCN has been performed for the first time in supercritical carbon dioxide. In the proposed procedure non-toxic and non-flammable carbon dioxide acts not...

A phenanthroline-based porous organic polymer for the iridium-catalyzed hydrogenation of carbon dioxide to formate

2019 ◽  
Vol 7 (23) ◽  
pp. 14019-14026 ◽  
Author(s):  
Gunniya Hariyanandam Gunasekar ◽  
Sungho Yoon
Keyword(s):  
Carbon Dioxide ◽  
Functional Groups ◽  
Single Site ◽  
Organic Polymer ◽  
Selective Catalyst ◽  
Porous Organic Polymer ◽  
Highly Active ◽  
First Time ◽  
Hydrogenation Of Carbon Dioxide ◽  
Hydrogenation Of Co

A novel phenanthroline-functionalized porous organic polymer (phen-POP) has been designed, and prepared for the first time without other reactive functional groups in the polymer skeleton. Post-synthetic metalation of phen-POP with IrCl3 afforded a single-site, highly active and selective catalyst for the hydrogenation of CO2 to formate.

scholarly journals The Position of Solid Carbon Dioxide in the Triboelectric Series

2019 ◽  
Vol 72 (8) ◽  
pp. 633 ◽  
Author(s):  
Jinyang Zhang ◽  
Simone Ciampi
Keyword(s):  
Carbon Dioxide ◽  
Negative Charge ◽  
Plastic Material ◽  
Indirect Evidence ◽  
Liquid Carbon ◽  
Solid Carbon Dioxide ◽  
Dry Ice ◽  
First Time ◽  
Charge Sign ◽  
Positively Charged

The process of releasing liquid carbon dioxide from a fire extinguisher is accompanied by a strong static charging of the plastic material making up the extinguisher discharge horn. Firefighters often report an electric shock when operating CO2 extinguishers, but the origin of this electrostatic hazard is largely unknown. Here, we begin to investigate this phenomenon, and test the hypothesis of plastic samples being tribocharged on contact with rapidly flowing solid CO2. Using Faraday pail measurements, we show that non-conductive polymers gain a net static charge when brought in and out of contact with dry ice (solid CO2). These measurements of charge sign and magnitude give indirect evidence helping to place solid CO2 for the first time on the triboelectric series. Polydimethylsiloxane (PDMS), polytetrafluoroethylene (PTFE), and polyvinyl chloride (PVC) samples acquire a negative charge when rubbed against dry ice, whereas poly(methyl methacrylate) (PMMA), glass, and nylon surfaces become positively charged. Therefore, we suggest the position of dry ice in the triboelectric series to be close to that of materials with stable cations and unstable anions, possibly locating it between PMMA and PVC.

Influence of ionic liquids microenvironment on the coupling reaction of epoxide and carbon dioxide: DFT and MD

2020 ◽  
Vol 308 ◽  
pp. 113069
Author(s):  
Xinrui Zhu ◽  
Yuhang Hu ◽  
Jingsheng Zhou ◽  
Hehe Ren ◽  
Xugeng Guo ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquids ◽  
Coupling Reaction
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