Results 21 to 30 of about 2,740,315 (129)
Novel postmodifications of the Ugi reaction [PDF]
, 2016 In dieser Arbeit wurden neuartige Postmodifikationen von Produkten der Ugi-4CR untersucht. Ihre Möglichkeiten und Grenzen wurden durch das Permutieren der notwendigen funktionellen Gruppen um das Ugi-Grundgerüst herum und durch Synthese von ...
Welsch, Sebastian
core +1 more source
Ugi four-component reaction of alcohols: stoichiometric and catalytic oxidation/MCR sequences.
, 2013 International audienceA new, simple, and efficient procedure for the one-pot Ugi four-component reaction of alcohols instead of aldehydes is described. Using a stoichiometric amount of IBX or only 1-2% of sodium 2-iodobenzenesulfonate in the presence of ...
Drouet, Fleur +2 more
core +2 more sources
, 2014 A four-component Ugi reaction (Ugi-4CR) utilizing formylphenyl boronic acids under mild condition was developed for the synthesis of arylboronic acid analogs.
Lian, Ru-Ching; Lin, Meng-Hsuan; Liao, Pin-Hsuan; Fu, Jia-Jie; Wu, Meng-Ju; Wu, Yang-Chang; Chang, Fang-Rong; Wu, Chin-Chung; Pan, Po-Shen +1 more
core +1 more source
Innovations and Inventions: Why Was the Ugi Reaction Discovered Only 37 Years after the Passerini Reaction? [PDF]
, 2022 This year represents the 100th anniversary of the discovery of the Passerini three-component reaction. The related Ugi four-compound reaction was discovered 37 years after the Passerini reaction.
Dömling, Alexander, Alexander Dömling
core +2 more sources
MolbankThe multicomponent synthesis of a novel and highly symmetric polyheterocycle based on the pyrrolo[3,4-b]pyridin-5-one core incorporating the privileged tetrahydroisoquinoline moiety is described.
Roberto E. Blanco-Carapia +2 more
doaj +1 more source
, 2016 The Ugi coupling reaction involves the combination of isocyanide (a), aldehyde (b), amine (c) and carboxylic acid (d) components in a single reaction step to give an α-aminoacyl amide product, as exemplified above for the preparation of AZ126.
Darren S. Heeke (3220149) +13 more
core +1 more source
Sulfur-Switch Ugi Reaction for Macrocyclic Disulfide-Bridged Peptidomimetics [PDF]
, 2017 A general strategy is introduced for the efficient synthetic access of disulfide linked artificial macrocycles via a Ugi four-component reaction (U4CR) followed by oxidative cyclization.
Vishwanatha, Thimmalapura M +5 more
core +2 more sources
The Ugi reaction in polymer chemistry: syntheses, applications and perspectives
, 2015 The Ugi reaction, one of the most famous multicomponent reactions, has recently been introduced into polymer chemistry as a novel, efficient and useful tool to prepare multifunctional polymers.
Wei, Yen +4 more
core +1 more source
European Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.Straightforward access to oxazole‐containing piperidines through a multicomponent reaction from α‐isocyanoacetates is described. By expanding the reactivity of these a‐isocyanoacetates from aldehydes to ketones, this process efficiently delivers oxazolyl‐piperidines bearing a quaternary stereocenter as valuable scaffolds relevant to drug discovery. The
Roshan Chandrakant Kajare +3 more
wiley +1 more source
Ugi Multicomponent Reaction Based Synthesis of Medium-Sized Rings [PDF]
, 2017 An Ugi multicomponent reaction based two-step strategy was applied to generate medium-sized rings. In the first linear expansion phase, a series of diamines reacted with cyclic anhydrides to produce different lengths of terminal synthetic amino acids as ...
Rossetti A. +6 more
core +4 more sources