Results 11 to 20 of about 2,206 (129)

Use of Phenyl Formate as a CO Surrogate for the Reductive Cyclization of Organic Nitro Compounds to Yield Different N-Heterocycles: Avoiding the Use of Autoclaves and Pressurized Gases

Chemistry Proceedings, 2022
The reductive cyclization of different organic nitro compounds by carbon monoxide, catalyzed by transition metal complexes, is a very efficient and clean strategy for the synthesis of many N-heterocycles.
Fabio Ragaini, Francesco Ferretti, Manar Ahmed Fouad   +2 more
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N-Sulfinylpyrrolidine-containing ureas and thioureas as bifunctional organocatalysts

Beilstein Journal of Organic Chemistry, 2021
The synthesis of bifunctional N-sulfinylureas and thioureas with an appended pyrrolidine unit is presented. These organocatalysts were evaluated in Michael additions of aldehydes to nitroalkenes both under solvent-free conditions and in solution.
Viera Poláčková, Dominika Krištofíková, Boglárka Némethová, Renata Górová, Mária Mečiarová, Radovan Šebesta   +5 more
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Ammonia–Borane-Mediated Reduction of Nitroalkenes

SynOpen, 2020
Ammonia borane (AB) has been successfully employed in the reduction of nitroalkenes. A variety of nitrostyrenes and alkyl-substituted­ nitroalkenes were chemoselectively reduced to the corresponding nitroalkanes, in short reaction time, with an atom ...
Chiara Faverio, Monica Fiorenza Boselli, Laura Raimondi, Maurizio Benaglia   +3 more
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The Participation of 3,3,3-Trichloro-1-nitroprop-1-ene in the [3 + 2] Cycloaddition Reaction with Selected Nitrile N-Oxides in the Light of the Experimental and MEDT Quantum Chemical Study

Molecules, 2021
The regioselective zw-type [3 + 2] cycloaddition (32CA) reactions of a series of aryl-substituted nitrile N-oxides (NOs) with trichloronitropropene (TNP) have been both experimentally and theoretically studied within the Molecular Electron Density Theory
Karolina Zawadzińska, Mar Ríos-Gutiérrez, Karolina Kula, Przemysław Woliński, Barbara Mirosław, Tomasz Krawczyk, Radomir Jasiński   +6 more
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Full Regio- and Stereoselective Protocol for the Synthesis of New Nicotinoids via Cycloaddition Processes with the Participation of Trans-Substituted Nitroethenes: Comprehensive Experimental and MEDT Study

Molecules, 2023
[3 + 2] Cycloaddition reactions with the participation of Z-C-(3-pyridyl)-N-methylnitrone and series of E-2-R-nitroethenes were both experimentally and theoretically explored in the framework of Molecular Electron Density Theory.
Jowita Kras, Przemysław Woliński, Roman Nagatsky, Oleg M. Demchuk, Radomir Jasiński   +4 more
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Understanding the Regioselectivity and the Molecular Mechanism of [3 + 2] Cycloaddition Reactions between Nitrous Oxide and Conjugated Nitroalkenes: A DFT Computational Study

Molecules, 2022
Regiochemical aspects and the molecular mechanism of the [3 + 2] cycloaddition between nitrous oxide and conjugated nitroalkenes were evaluated on the basis of the wb97xd/6-311 + G(d) (PCM) computational study.
Ewa Dresler, Aneta Wróblewska, Radomir Jasiński   +2 more
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Nitro Fatty Acids (NO₂-FAs): An Emerging Class of Bioactive Fatty Acids

Molecules, 2021
Unsaturated nitro fatty acids (NO2-FAs) constitute a category of molecules that may be formed endogenously by the reaction of unsaturated fatty acids (UFAs) with secondary species of nitrogen monoxide and nitrite anions.
Giorgos S. Koutoulogenis, George Kokotos
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Morita-Baylis-Hillman and Rauhut-Currier Reactions of Conjugated Nitroalkenes

CHIMIA, 2012
?-Functionalization of conjugated nitroalkenes and nitrodienes using various electrophiles in the presence of amine catalysts such as imidazole and DMAP and the synthetic applications of the products are reviewed.
Kirandeep Kaur, Irishi N. N. Namboothiri
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Modular access to chiral cyclopentanes via formal [2+2+1] annulation enabled by palladium/chiral squaramide relay catalysis

Tetrahedron Chem, 2022
An enantio- and diastereodivergent [2+2+1] annulation reaction of allyl ketones, acidic methylene compounds, and nitroalkenes to assemble highly functionalized cyclopentanes from readily available substances enabled by asymmetric relay catalysis of ...
Lian-Feng Fan, Rui Liu, Pu-Sheng Wang, Liu-Zhu Gong   +3 more
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An Efficient Method for the N-Bromosuccinimide Catalyzed Synthesis of Indolyl-Nitroalkanes

Molecules, 2009
An efficient and practical method for the synthesis of indolyl-nitroalkane derivatives catalyzed by N-bromosuccinimide is described. The generality of this method was demonstrated by synthesizing an array of diverse 3-substituted indole derivatives by ...
Ching-Fa Yao, Pateliya Mujjamil Habib, Veerababurao Kavala, B. Rama Raju, Hu-Lin Fang, Chun-Chao Wang, Chun-Wei Kuo   +6 more
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