scholarly journals Immobilized catalysts in synthesis of cyclic carbonates from CO2

2019 ◽  
Author(s):  
Agnieszka Siewniak
Keyword(s):  
Cyclic Carbonates ◽  
Immobilized Catalysts

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.

Insights into the Solubility of Carbon Dioxide in Grafted Mesoporous Silica for the Catalytic Synthesis of Cyclic Carbonates by Nanoconfinement

2021 ◽  
Author(s):  
Shahab Boroun ◽  
Abolfazl Alizadeh Sahraei ◽  
Abdol Hadi Mokarizadeh ◽  
Houshang Alamdari ◽  
Frédéric-Georges Fontaine ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mesoporous Silica ◽  
Catalytic Synthesis ◽  
Cyclic Carbonates

Insights into the BPO 4 ‐Driven Catalytic Mechanism for the Formation of Cyclic Carbonates from CO 2 and Epoxides

2021 ◽  
Vol 6 (29) ◽  
pp. 7489-7498
Author(s):  
Anderson Gonzalez‐Vargas ◽  
Fernando Castro‐Gómez ◽  
Pedro J. Castro
Keyword(s):  
Catalytic Mechanism ◽  
Cyclic Carbonates

Tailored Covalent Organic Frameworks for Simultaneously Capturing and Converting CO2 into Cyclic Carbonates

2021 ◽  
Author(s):  
Rongchang Luo ◽  
Yiying Yang ◽  
Kechi Chen ◽  
Xiangying Liu ◽  
Min Chen ◽  
...  
Keyword(s):  
Covalent Organic Frameworks ◽  
Cyclic Carbonates ◽  
Co2 Utilization

Catalytic cycloaddition of CO2 to epoxide is one of the most promising and green pathways for CO2 utilization in industry. In recent years, covalent organic frameworks (COFs) as a flourishing...

scholarly journals Rational Study of DBU Salts for the CO2 Insertion into Epoxides for the Synthesis of Cyclic Carbonates

2019 ◽  
Vol 7 (12) ◽  
pp. 10633-10640 ◽  
Author(s):  
Noé Fanjul-Mosteirín ◽  
Coralie Jehanno ◽  
Fernando Ruipérez ◽  
Haritz Sardon ◽  
Andrew P. Dove
Keyword(s):  
Cyclic Carbonates
Sign in / Sign up

Export Citation Format

Share Document