Frontiers in Chemistry, 2022 A series of γ-lactone derivatives (E)-4-arylidene-5-oxotetrahydrofuran derivatives were synthesized via a tandem Passerini 3CC/SN cyclization microwave-assisted one-pot method efficiently starting from Baylis Hillman acids, aryl glyoxals and isocyanides,
Yun Dong +11 more
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Efficient Synthesis of Boron-Containing α-Acyloxyamide Analogs via Microwave Irradiation
Molecules, 2013 In this report, a Passerini three-component reaction utilizing boron-containing carboxylic acids or aldehydes is discussed. The reaction was carried out in water and facilitated by the use of microwave irradiation.
Po-Shen Pan +6 more
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Aromatic nitrations by mixed acid. Slow liquid-liquid reaction regime [PDF]
, 1995 Aromatic nitrations by mixed acid have been selected as a specific case of a heterogeneous liquid-liquid reaction. An extensive experimental programme has been followed using adiabatic and heat-flow calorimetry and pilot reactor experiments, supported by
Alos, M.A. +6 more
core +3 more sources
Molecules, 2022 In this report, 19 boron-containing depsipeptides were synthesized via microwave-assisted Passerini three-component reaction (P-3CR) in an aqueous environment.
Shuo-Bei Qiu +11 more
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Turn-Induction in Peptides Incorporating Novel Cyrene-Derived α,α-Disubstituted Amino Acid. [PDF]
J Pept SciNovel chiral cyrene‐derived Cyr residues were incorporated into peptides. The α,α‐disubstituted amino acid residue was introduced using the Ugi reaction. X‐ray crystallographic analysis of R‐ and S‐Cyr residues indicated preference to adopt left‐ and right‐handed α‐helical conformations, respectively.
Bhowal KB, Hitti R, Lubell WD.
europepmc +2 more sources
Concise Synthesis of Macrocycles by Multicomponent Reactions [PDF]
, 2018 A short reaction pathway was devised to synthesize a library of artificial 18-27-membered macrocycles. The five-step reaction sequence involves ring opening of a cyclic anhydride with a diamine, esterification, coupling with an amino acid isocyanide ...
Abdelraheem, Eman M. M. +2 more
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Passerini Reactions on Biocatalytically Derived Chiral Azetidines [PDF]
Molecules, 2016 The purpose of this study was to explore a series of Passerini reactions on a biocatalytically derived enantiopure azetidine-2-carboxyaldehyde in order to obtain, in a diastereoselective manner, polyfunctionalised derivatives having the potential to be cyclized to chiral bridged bicyclic nitrogen heterocycles.
MONI, LISA +6 more
openaire +3 more sources
Electrochemical and photoelectrochemical properties of nickel oxide (NiO) with nanostructured morphology for photoconversion applications [PDF]
, 2018 The cost-effective production of chemicals in electrolytic cells and the conversion of the radiation energy into electrical energy in photoelectrochemical cells (PECs) require the use of electrodes with large surface area, which possess either ...
Bonomo, Matteo +2 more
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The effects of MgO, Na2O and SO3 on industrial clinkering process: phase composition, polymorphism, microstructure and hydration, using a multidisciplinary approach [PDF]
, 2019 Preprint publicado en: Materials Characterization Volume 155, September 2019, 109809The present investigation deals with how minor elements (their oxides: MgO, Na2O and SO3) in industrial kiln feeds affect (i) chemical reactions upon clinkering, (ii ...
Alessandro, Pavese +6 more
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Pyrrolidinodiones in Enol-Ugi, Enol-Passerini, and Anomalous Enol-Passerini Condensations
Proceedings, 2019 In continuation of our recent research on the development of novel multicomponent reactions with isocyanides, we have used, for the first time, enols as the acid components in Ugi- and Passerini-type reactions. Thus, electron-poor pyrrolidinodiones react
Ana G. Neo, Carlos F. Marcos
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