α-Ketoglutaric acid in Ugi reactions and Ugi/aza-Wittig tandem reactions [PDF]
Beilstein Journal of Organic ChemistryA small library of bis- and tetraamides was synthesized by the Ugi reaction with α-ketoglutaric acid, tert-butyl isocyanide, aromatic aldehydes, and aromatic amines.
Vladyslav O. Honcharov +6 more
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Ugi Four-Component Reactions Using Alternative Reactants [PDF]
Molecules, 2023 The Ugi four-component reaction (Ugi-4CR) undoubtedly is the most prominent multicomponent reaction (MCRs) that has sparked organic chemists’ interest in the field.
Seyyed Emad Hooshmand, Wei Zhang
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New tandem Ugi/intramolecular Diels–Alder reaction based on vinylfuran and 1,3-butadienylfuran derivatives [PDF]
Beilstein Journal of Organic ChemistryA new tandem sequence involving the Ugi reaction and Diels–Alder [4 + 2] cycloaddition based on vinylfuran and 1,3-butadienylfuran derivatives was designed and studied.
Yuriy I. Horak +5 more
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Doebner-type pyrazolopyridine carboxylic acids in an Ugi four-component reaction [PDF]
Beilstein Journal of Organic Chemistry, 2019 Substituted 1H-pyrazolo[3,4-b]pyridine-4- and 1H-pyrazolo[3,4-b]pyridine-6-carboxamides have been synthetized through a Doebner–Ugi multicomponent reaction sequence in a convergent and versatile manner using diversity generation strategies: combination ...
Maryna V. Murlykina +11 more
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Synthesis of Boron-Containing Primary Amines [PDF]
Molecules, 2013 In this study, boron-containing primary amines were synthesized for use as building blocks in the study of peptoids. In the first step, Gabriel synthesis conditions were modified to enable the construction of seven different aminomethylphenyl boronate ...
Sheng-Hsuan Chung +4 more
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Harnessing unprotected deactivated amines and arylglyoxals in the Ugi reaction for the synthesis of fused complex nitrogen heterocycles [PDF]
Beilstein Journal of Organic ChemistryPiperazines and diazepines are examples of nitrogen heterocycles present in many marketed drugs highlighting their importance in the discovery of novel bioactive compounds.
Javier Gómez-Ayuso +5 more
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Sequential Ugi reaction/base-induced ring closing/IAAC protocol toward triazolobenzodiazepine-fused diketopiperazines and hydantoins [PDF]
Beilstein Journal of Organic Chemistry, 2018 A practical three-step protocol for the assembly of triazolobenzodiazepine-fused diketopiperazines and hydantoins has been developed. The synthesis of these tetracyclic ring systems was initiated by an Ugi reaction, which brought together all necessary ...
Robby Vroemans +7 more
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Ugi Reaction on α-Phosphorated Ketimines for the Synthesis of Tetrasubstituted α-Aminophosphonates and Their Applications as Antiproliferative Agents. [PDF]
Molecules, 2021 López-Francés A +4 more
europepmc +3 more sources
Removal of copper ions by functionalized biochar based on a multicomponent Ugi reaction. [PDF]
RSC Adv, 2021 Liu Q, Zang GL, Zhao Q.
europepmc +3 more sources
Cage-like microstructures via sequential Ugi reactions in aqueous emulsions
Beilstein Journal of Organic ChemistryCage-like microstructures were obtained in two steps by sequential Ugi reactions. At the first stage, submicron colloidal particles based on carboxymethylcellulose and chitosan with a domain structure were obtained in an aqueous suspension. In the second
Rita S. Alqubelat +2 more
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