Results 21 to 30 of about 17,074 (296)
Beilstein Journal of Organic Chemistry, 2021 The rhodium-catalyzed transannulation of N-perfluoroalkyl-1,2,3-triazoles with aromatic and aliphatic terminal alkynes under microwave heating conditions afforded N-perfluoroalkyl-3,4-disubstituted pyrroles (major products) and N-fluoroalkyl-2,4 ...
Olga Bakhanovich +3 more
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Selectively reductive amination of levulinic acid with aryl amines to N-substituted aryl pyrroles
Green Energy & Environment, 2023 Synthesizing nitrogen (N)-containing molecules from biomass derivatives is a new strategy for production of this kind of chemicals. Herein, for the first time we present the synthesis of N-substituted aryl pyrroles via reductive amination/cyclization of ...
Cailing Wu +7 more
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Atom Economical Multi-Substituted Pyrrole Synthesis from Aziridine
Molecules, 2022 Multi-substituted pyrroles are synthesized from regiospecific aziridine ring-opening and subsequent intramolecular cyclization with a carbonyl group at the γ-position in the presence of Lewis acid or protic acid.
Lingamurthy Macha +3 more
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Molecules, 2023 An efficient and direct approach to pyrroles was successfully developed by employing 3-formylchromones as decarboxylative coupling partners, and facilitated by microwave irradiation.
Xue Li +6 more
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Technology for the production of disubstituted pyrroles [PDF]
E3S Web of Conferences, 2023 In this work, we studied the catalytic synthesis of pyrrole and their derivatives from ketoximes and acetylene in the liquid phase under normal conditions in the presence of homogeneous catalysts.
Safarov Megli Djumayevich
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Журнал органічної та фармацевтичної хімії, 2020 Aim. To study the synthetic potential of cyclization of N-(β-polyfluoroacyl)vinyl derivatives of proline and N-substituted glycines into polyfluoroalkyl pyrroles, which are useful intermediates to fluorinated pyrrolidine alkaloids.
Anton A. Klipkov +3 more
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(E)-1-(3-Benzoyl-4-phenyl-1H-pyrrol-1-yl)-3-phenylprop-2-en-1-one
Molbank, 2022 Over the last decade, there has been an increasing effort to fight inflammatory conditions establishing new multitarget approaches. Chronic inflammation is implicated in many multifactorial diseases, constituting a great economic burden and a chronic ...
Viola Noti, Dimitra Hadjipavlou-Litina
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Effect of Substituents of Cerium Pyrazolates and Pyrrolates on Carbon Dioxide Activation
Molecules, 2021 Homoleptic ceric pyrazolates (pz) Ce(RR’pz)4 (R = R’ = tBu; R = R’ = Ph; R = tBu, R’ = Me) were synthesized by the protonolysis reaction of Ce[N(SiHMe2)2]4 with the corresponding pyrazole derivative.
Uwe Bayer +4 more
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Red-to-NIR Emissive Radical Cations Derived from Simple Pyrroles for Bio-Imaging
, 2021 Red-to-near-infrared (NIR) fluorophores are highly desirable for bio-imaging with advantages of excellent tissue penetration ability and less interference from auto-fluorescence, but their synthesis usually require tedious procedures and it’s thus highly
Ben Zhong, Tang +5 more
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Vibrations of pyrrole, N-substituted pyrroles, and their cations
Journal of Molecular Spectroscopy, 2021 The vibrations of pyrrole, N-deuteropyrrole, N-fluoropyrrole, N-aminopyrrole and N-methylpyrrole are studied. The evolution of the vibrational wavenumbers of pyrrole is examined, as the mass of the nitrogen-bonded hydrogen atom is artificially increased.
Alexander R. Davies +2 more
openaire +1 more source