Results 21 to 30 of about 738,855 (305)

Proline-Catalysed Amination Reactions in Cyclic Carbonate Solvents

Molecules, 2011
Propylene carbonate is shown to be an environmentally friendly and sustainable replacement for dichloromethane and acetonitrile in proline-catalysed a-hydrazinations of aldehydes and ketones.
Christopher Beattie, Pedro Villuendas, Michael North   +2 more
doaj   +1 more source

Synthesis of glycerol carbonate from glycerin with CaCO3 in a batch reactor

Designed Monomers and Polymers, 2022
In the present work, a reaction methodology was implemented using a batch reactor, which synthesized glycerol carbonate (GC) using glycerin and CaCO3. A crystallographic analysis of CaCO3 was performed to determine its crystalline form.
Ana Beatriz Morales Cepeda, Luis A. Macclesh del Pino, Claudia Esmeralda Ramos Galvan, Eric Joaquín González Pedraza, Luciano Aguilera Vazquez   +4 more
doaj   +1 more source

Shear Strength Behavior of Oil-Contaminated Bushehr Carbonate Sand [PDF]

Journal of Rehabilitation in Civil Engineering
The crude oil leakage in soils could lead to an extreme reduction in resistance. It is significant for oil-rich countries, such as Iran, with several crude oil resources.
Masoud Fallah, Ahmadreza Mazaheri, Hamid Lajervardi, Masoud Nasiri   +3 more
doaj   +1 more source

Experimental investigation of calcium carbonate mineralogy in past and future oceans [PDF]

, 2011
Inorganic marine calcium carbonate formation and mineralogy varies significantly concurrent with the solution composition. During the Phanerozoic, due to oscillations in the seawater composition, this resulted in the formation of either dominantly ...
Bots, Pieter
core   +6 more sources

Conversion of CO₂ into Chloropropene Carbonate Catalyzed by Iron (II) Phthalocyanine Hypercrosslinked Porous Organic Polymer

Molecules, 2020
Commercial iron (II) phthalocyanine (FePc) was knitted with biphenyl using a Friedel–Crafts reaction to yield a micro-meso porous organic polymer (FePc-POP) with a specific surface area of 427 m2/g and 5.42% of iron loading. This strategy allowed for the
Eva M. Maya, Antonio Valverde-González, Marta Iglesias   +2 more
doaj   +1 more source

Efficient and Reusable Iron Catalyst to Convert CO₂ into Valuable Cyclic Carbonates

Molecules, 2021
The production of cyclic carbonates from CO2 cycloaddition to epoxides, using the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz = 1H-pyrazol-1-yl) as a catalyst, is achieved in excellent yields (up to 98%) in a tailor-made ionic liquid (IL ...
Ana P. C. Ribeiro, Peter Goodrich, Luísa M. D. R. S. Martins   +2 more
doaj   +1 more source

Enzymatic Hydrolysis of Organic Cyclic Carbonates [PDF]

Journal of Biological Chemistry, 1998
Ethylene carbonate, a cyclic organic carbonate widely used industrially, is toxic when metabolically converted to ethylene glycol. A rat liver enzyme active in catalyzing the ring opening has been purified to electrophoretic homogeneity and found to be active in the hydrolysis of ethylene, vinylene, and propylene carbonates to CO2 and the respective ...
Y L, Yang, S G, Ramaswamy, W B, Jakoby
openaire   +2 more sources

Poly(carbonate-urethane): an isocyanate-free procedure from α,ω-di(cyclic carbonate) telechelic poly(trimethylene carbonate)s

, 2011
International audienceA simple isocyanate-free method to synthesize poly(trimethylene carbonate hydroxy-urethane)s is described. The strategy first involves the synthesis of α,ω-di(cyclic carbonate) telechelic polycarbonate precursors upon ring-opening ...
Carpentier, Jean-François, Guillaume, Sophie,, Marion Helou, Helou, Marion, Jean-François Carpentier, Sophie M. Guillaume, Guillaume, Sophie, M.   +6 more
core   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

FEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Extending the application of bifunctional ionic liquid-based integrated capture and conversion of CO2 to produce cyclic carbonates

Journal of CO2 Utilization
Nowadays there is an urgent need for mitigating CO2 emissions through clean energy and the development of new carbon capture and utilization (CCU) technologies.
Alejandro Belinchón, Álvaro Pereira, Elisa Hernández, Pablo Navarro, José Palomar   +4 more
doaj   +1 more source