scholarly journals Poly(hydroxyurethane): catalytic applicability for the cyclic carbonate synthesis from epoxides and CO2

2020 ◽  
Vol 56 (73) ◽  
pp. 10678-10681
Author(s):  
Suguru Motokucho ◽  
Hiroshi Morikawa
Keyword(s):  
High Selectivity ◽  
Cyclic Carbonate ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Synthetic Methodology

We have developed a synthetic methodology using poly(hydroxyurethane) as an organocatalyst for the chemical fixation of CO2 into epoxides, leading to the formation of five-membered cyclic carbonates with remarkably high selectivity and yields.

An imidazolium-functionalized mesoporous cationic metal–organic framework for cooperative CO2 fixation into cyclic carbonate

2018 ◽  
Vol 54 (4) ◽  
pp. 342-345 ◽  
Author(s):  
Jun Liang ◽  
Ya-Qiang Xie ◽  
Xu-Sheng Wang ◽  
Qiang Wang ◽  
Tao-Tao Liu ◽  
...  
Keyword(s):  
Co2 Fixation ◽  
Metal Organic Framework ◽  
Cyclic Carbonate ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Co Catalyst ◽  
Mild Conditions ◽  
Catalyst Free ◽  
Metal Organic ◽  
Organic Framework

A mesoporous cationic Cr-based metal–organic framework (MOF), FJI-C10, has been obtained and exhibited excellent performances in chemical fixation of CO2 into cyclic carbonates under co-catalyst free and mild conditions.

Dual-porous metal organic framework for room temperature CO2 fixation via cyclic carbonate synthesis

2016 ◽  
Vol 18 (1) ◽  
pp. 232-242 ◽  
Author(s):  
Robin Babu ◽  
Amal Cherian Kathalikkattil ◽  
Roshith Roshan ◽  
Jose Tharun ◽  
Dong-Woo Kim ◽  
...  
Keyword(s):  
Room Temperature ◽  
Co2 Fixation ◽  
High Selectivity ◽  
Metal Organic Framework ◽  
Porous Metal ◽  
Cyclic Carbonate ◽  
Cyclic Carbonates ◽  
Solvent Free Conditions ◽  
Metal Organic ◽  
Organic Framework

An approach employing a dual-porous metal organic framework as a catalyst for room temperature CO2 fixation via cyclic carbonate synthesis with high selectivity towards cyclic carbonates under solvent free conditions was demonstrated.

Two dimensional covalent organic framework materials for chemical fixation of carbon dioxide: excellent repeatability and high selectivity

2017 ◽  
Vol 46 (33) ◽  
pp. 10780-10785 ◽  
Author(s):  
Kaikai Xu ◽  
Yihu Dai ◽  
Benfei Ye ◽  
Hongming Wang
Keyword(s):  
Carbon Dioxide ◽  
High Selectivity ◽  
Two Dimensional ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Covalent Organic Framework ◽  
Framework Materials ◽  
Fixation Of Carbon Dioxide ◽  
Organic Framework

Two dimensional (2D) metalloporphyrin-based covalent organic framework (COF) composites were synthesized and employed to catalyze the coupling of CO2 and epoxides to form cyclic carbonates.

scholarly journals Zwitterion π–conjugated nanoporous polymer based on guanidinium and β-ketoenol as a heterogeneous organo-catalyst for chemical fixation of CO2 into cyclic carbonates

2019 ◽  
Author(s):  
Mousumi Garai ◽  
Vepa Rozyyev ◽  
Cafer T Yavuz
Keyword(s):  
Surface Area ◽  
Cyclic Carbonate ◽  
Organic Polymer ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Ambient Conditions ◽  
Co Catalysts

The chemical fixation of CO2 with epoxides to cyclic carbonate is an attractive 100% atom economic reaction.  It is a safe and green alternative to the route from diols and toxic phosgene.  In this manuscript, we present a new zwitterionic π–conjugated nanoporous catalyst (Covalent Organic Polymer, COP-213) based on guanidinium and β-ketoenol functionality, that is synthesized from triaminoguanidinium halide (TGCl) and β-ketoenols via ampoule method at 120°C. The catalyst is characterized by NMR, FTIR-ATR, PXRD, TGA, and for surface area (BET) and CO2 uptake.  It shows quantitative conversion and selectivity in chemical fixation of CO2 to epoxides under ambient conditions and without the need for co-catalysts, metals, solvent, or pressure.  The catalyst can be recycled at least three times without loss of reactivity. 

scholarly journals Highly Efficient MOF Catalyst Systems for CO2 Conversion to Bis-Cyclic Carbonates as Building Blocks for NIPHUs (Non-Isocyanate Polyhydroxyurethanes) Synthesis

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 628
Author(s):  
Adolfo Benedito ◽  
Eider Acarreta ◽  
Enrique Giménez
Keyword(s):  
Molar Mass ◽  
Cycloaddition Reaction ◽  
Building Blocks ◽  
Catalyst System ◽  
Cyclic Carbonate ◽  
Ammonium Bromide ◽  
Cyclic Carbonates ◽  
High Molar Mass ◽  
Highly Efficient ◽  
Free Process

The present paper describes a greener sustainable route toward the synthesis of NIPHUs. We report a highly efficient solvent-free process to produce [4,4′-bi(1,3-dioxolane)]-2,2′-dione (BDC), involving CO2, as renewable feedstock, and bis-epoxide (1,3-butadiendiepoxide) using only metal–organic frameworks (MOFs) as catalysts and cetyltrimethyl-ammonium bromide (CTAB) as a co-catalyst. This synthetic procedure is evaluated in the context of reducing global emissions of waste CO2 and converting CO2 into useful chemical feedstocks. The reaction was carried out in a pressurized reactor at pressures of 30 bars and controlled temperatures of around 120–130 °C. This study examines how reaction parameters such as catalyst used, temperature, or reaction time can influence the molar mass, yield, or reactivity of BDC. High BDC reactivity is essential for producing high molar mass linear non-isocyanate polyhydroxyurethane (NIPHU) via melt-phase polyaddition with aliphatic diamines. The optimized Al-OH-fumarate catalyst system described in this paper exhibited a 78% GC-MS conversion for the desired cyclic carbonates, in the absence of a solvent and a 50 wt % chemically fixed CO2. The cycloaddition reaction could also be carried out in the absence of CTAB, although lower cyclic carbonate yields were observed.

Bimetallic scorpionate-based helical organoaluminum complexes for efficient carbon dioxide fixation into a variety of cyclic carbonates

2020 ◽  
Vol 10 (10) ◽  
pp. 3265-3278 ◽  
Author(s):  
Marta Navarro ◽  
Luis F. Sánchez-Barba ◽  
Andrés Garcés ◽  
Juan Fernández-Baeza ◽  
Israel Fernández ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Cyclic Carbonate ◽  
Carbon Dioxide Fixation ◽  
Cyclic Carbonates ◽  
Carbonate Formation ◽  
Aluminum Complexes

The binuclear aluminum complexes [AlR2(κ2-NN′;κ2-NN′)AlR2] with TBAB/PPNCl behave as excellent systems for cyclic carbonate formation from CO2 with challenging epoxides.

scholarly journals Study of Superbase-Based Deep Eutectic Solvents as the Catalyst in the Chemical Fixation of CO2 into Cyclic Carbonates under Mild Conditions

Materials ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 759 ◽  
Author(s):  
Sara García-Argüelles ◽  
Maria Ferrer ◽  
Marta Iglesias ◽  
Francisco Del Monte ◽  
María Gutiérrez
Keyword(s):  
Deep Eutectic Solvents ◽  
Chemical Fixation ◽  
Cyclic Carbonates ◽  
Mild Conditions
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