A room temperature synthesizable zeolitic imidazolium framework catalyst for the solvent-free synthesis of cyclic carbonates

2018 ◽  
Vol 25 ◽  
pp. 6-13 ◽  
Author(s):  
Robin Babu ◽  
Seol-Hee Kim ◽  
Jintu Francis Kurisingal ◽  
Hyeon-Jun Kim ◽  
Gak-Gyu Choi ◽  
...  
Keyword(s):  
Room Temperature ◽  
Solvent Free ◽  
Cyclic Carbonates ◽  
Solvent Free Synthesis

Room Temperature Solvent-Free Synthesis of Monodisperse Magnetite Nanocrystals

2006 ◽  
Vol 6 (3) ◽  
pp. 852-856 ◽  
Author(s):  
X. R. Ye ◽  
C. Daraio ◽  
C. Wang ◽  
J. B. Talbot ◽  
S. Jin
Keyword(s):  
Oleic Acid ◽  
Solid State ◽  
Large Scale ◽  
Room Temperature ◽  
Solvent Free ◽  
Two Dimensional ◽  
New Process ◽  
High Boiling Point ◽  
Magnetite Nanocrystals ◽  
Solvent Free Synthesis

We have successfully demonstrated a facile, solvent-free synthesis of highly crystalline and monodisperse Fe3O4 nanocrystallites at ambient temperature avoiding any heating. Solid state reaction of inorganic Fe(II) and Fe(III) salts with NaOH was found to produce highly crystalline Fe3O4 nanoparticles. The reaction, if carried out in the presence of surfactant such as oleic acid–oleylamine adduct, generated monodisperse Fe3O4 nanocrystals extractable directly from the reaction mixture. The extracted nanoparticles were capable of forming self-assembled, two-dimensional and uniform periodic array. The new process utilizes inexpensive and nontoxic starting materials, and does not require a use of high boiling point and toxic solvents, thus is amenable to an environmentally desirable, large-scale synthesis of nanocrystals.

Efficiency of DBU/iodine cooperative dual catalysis for the solvent-free synthesis of five-membered cyclic carbonates under atmospheric CO2 pressure

2015 ◽  
Vol 10 ◽  
pp. 7-11 ◽  
Author(s):  
Olivier Coulembier ◽  
Sébastien Moins ◽  
Vincent Lemaur ◽  
Roberto Lazzaroni ◽  
Philippe Dubois
Keyword(s):  
Solvent Free ◽  
Atmospheric Co2 ◽  
Cyclic Carbonates ◽  
Dual Catalysis ◽  
Solvent Free Synthesis

Zinc 2-N-methyl N-confused porphyrin: an efficient catalyst for the conversion of CO2 into cyclic carbonates

2019 ◽  
Vol 9 (16) ◽  
pp. 4255-4261 ◽  
Author(s):  
Yuansheng Ge ◽  
Guoe Cheng ◽  
Nanfeng Xu ◽  
Weizhou Wang ◽  
Hanzhong Ke
Keyword(s):  
Solvent Free ◽  
Cyclic Carbonates ◽  
Efficient Catalyst ◽  
Solvent Free Synthesis

A zinc 2-N-methyl N-confused porphyrin (Zn(NCP)Cl) catalyst was developed for the solvent-free synthesis of cyclic carbonates from epoxides and CO2.

The Paal–Knorr reaction revisited. A catalyst and solvent-free synthesis of underivatized and N-substituted pyrroles

2015 ◽  
Vol 17 (2) ◽  
pp. 1088-1099 ◽  
Author(s):  
Hyejin Cho ◽  
Richard Madden ◽  
Bilal Nisanci ◽  
Béla Török
Keyword(s):  
Room Temperature ◽  
Solvent Free ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Substituted Pyrroles ◽  
Solvent Free Synthesis

A catalyst and solvent-free room temperature synthesis of pyrroles is described.

CAU-11-COOH with a V-Shaped Linker as a Catalyst for the Solvent-Free Synthesis of Cyclic Carbonates from CO2 and Epoxides

2020 ◽  
Vol 20 (2) ◽  
pp. 752-759 ◽  
Author(s):  
Ga-Hyeong Kim ◽  
Jintu Francis Kurisingal ◽  
Yunjang Gu ◽  
Mi-Hye Lee ◽  
Youngson Choe ◽  
...  
Keyword(s):  
Solvent Free ◽  
Cyclic Carbonates ◽  
Solvent Free Synthesis

scholarly journals Solvent-free synthesis of enantioenriched β-silyl nitroalkanes under organocatalytic conditions

2021 ◽  
Vol 17 ◽  
pp. 2642-2649
Author(s):  
Akhil K Dubey ◽  
Raghunath Chowdhury
Keyword(s):  
Temperature Control ◽  
Carbonyl Compounds ◽  
Room Temperature ◽  
Conjugate Addition ◽  
High Reactivity ◽  
Solvent Free ◽  
Reaction Conditions ◽  
Silyl Group ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis

An enantioselective 1,4-conjugate addition of nitromethane to β-silyl α,β-unsaturated carbonyl compounds catalyzed by bifunctional squaramide catalysts has been developed. This methodology offers both enantiomers of β-silyl nitroalkanes in good to excellent yields (up to 92%) and enantioselectivities (up to 97.5% ee) under solvent-free conditions at room temperature. Control experiments reveal that the presence of a β-silyl group in the enones is crucial for high reactivity under the optimized reaction conditions.

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