Results 11 to 20 of about 514,078 (293)

Self-Assembled Bimetallic Aluminum-Salen Catalyst for the Cyclic Carbonates Synthesis [PDF]

open access: yesMolecules, 2021
Bimetallic bis-urea functionalized salen-aluminum catalysts have been developed for cyclic carbonate synthesis from epoxides and CO2. The urea moiety provides a bimetallic scaffold through hydrogen bonding, which expedites the cyclic carbonate formation ...
Wooyong Seong   +5 more
doaj   +2 more sources

Synthesis of cyclic carbonates from epoxides and carbon dioxide catalyzed by talc and other phyllosilicates [PDF]

open access: yesBMC Chemistry, 2020
Naturally occurring phyllosilicate minerals such as talc and vermiculite in conjunction with n-tetra butyl ammonium bromide (TBAB) co-catalyst were found to be efficient in the coupling of CO2 with epoxides to form cyclic carbonates.
Fiona Nakibuule   +4 more
doaj   +2 more sources

METHOD FOR PRODUCING CYCLIC CARBONATES

open access: yes, 2012
Linear or cyclic carbonates as potential monomers for isocyanate-free polyurethanes and polycarbonates were prepared from polyols and dialkylcarbonatesor diphenyl carbonates.
HATTI-KAUL RAJNI, PYO SANG-HYUN
openaire   +5 more sources

A Study on the Stability of Carbon Nanoforms–Polyimidazolium Network Hybrids in the Conversion of CO2 into Cyclic Carbonates: Increase in Catalytic Activity after Reuse [PDF]

open access: yesNanomaterials, 2021
Three different carbon nanoforms (CNFs), single-walled and multi-walled carbon nanotubes (SWCNTs, MWCNTs) and carbon nanohorns (CNHs), have been used as supports for the direct polymerization of variable amounts of a bis-vinylimidazolium salt ...
Anthony Morena   +6 more
doaj   +2 more sources

Synthesis of Bis(cyclic carbonates) from Epoxy Resin under Microwave Irradiation: The Structural Analysis and Evaluation of Thermal Properties [PDF]

open access: yesMolecules
This article describes the use of microwave irradiation in the synthesis of bis(cyclo carbonate) compounds (BCCs) in bulk (without solvent) from carbon dioxide capture using an epoxidized compound—a commercial epoxy resin—and compares this process to the
Edyta Hebda   +3 more
doaj   +2 more sources

Transformation of Linear Alkenyl N-Alkoxy Carbamates into Cyclic Bromo Carbonates

open access: yesChemistry
We present a protocol for the facile conversion of linear alkenyl N-alkoxy carbamates into cyclic bromo carbonates. The reaction is operationally simple, uses widely available, inexpensive reagents, and requires no rigorous exclusion of air or moisture ...
Shyam Sathyamoorthi, Steven P. Kelley
doaj   +2 more sources

Systematic synthetic study of four diastereomerically distinct limonene-1,2-diols and their corresponding cyclic carbonates [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2019
In order to produce versatile and potentially functional terpene-based compounds, a (R)-limonene-derived diol and its corresponding five-membered cyclic carbonate were prepared.
Hiroshi Morikawa   +6 more
doaj   +2 more sources

Concerted Hydrosilylation Catalysis by Silica-Immobilized Cyclic Carbonates and Surface Silanols [PDF]

open access: yesJACS Au, 2023
Shingo Hasegawa   +5 more
doaj   +2 more sources

Direct air capture and conversion of carbon dioxide into cyclic carbonates with basic ionic liquids [PDF]

open access: yes, 2022
Achieving net zero greenhouse gas emissions (ghg) is a top priority to limit the impacts of global warming. Carbon dioxide is the most abundant ghg and its direct air capture (DAC) is a very attractive strategy to reduce its concentration in the ...
Eduardo, García-Verdugo   +2 more
core   +1 more source

Synthesis of cyclic carbonates from epoxides and CO2 [PDF]

open access: yes, 2010
The synthesis of cyclic carbonates by the 100% atom economical reaction between epoxides and CO2 is reviewed in the context of reducing global emissions of waste CO2 and converting waste CO2 into industrially useful chemical ...
Young C, North M, Pasquale R
core   +3 more sources

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