Results 71 to 80 of about 27,751 (287)

Antagonism between lipid-derived reactive carbonyls and phenolic compounds in the Strecker degradation of amino acids [PDF]

, 2016
25 Páginas: 1 Tabla; 5 FigurasThe Strecker-type degradation of phenylalanine in the presence of 2-pentanal and phenolic compounds was studied to investigate possible interactions that either promote or inhibit the formation of Strecker aldehydes in food ...
Delgado, Rosa M., Hidalgo, Francisco J., Zamora, Rosario   +2 more
core   +1 more source

[3 + 2] Cycloaddition with photogenerated azomethine ylides in β-cyclodextrin [PDF]

Beilstein Journal of Organic Chemistry, 2020
Stability constants for the inclusion complexes of cyclohexylphthalimide 2 and adamantylphthalimide 3 with β-cyclodextrin (β-CD) were determined by 1H NMR titration, K = 190 ± 50 M−1, and K = 2600 ± 600 M−1, respectively. Photochemical reactivity of the inclusion complexes 2@β-CD and 3@β-CD was investigated, and we found out that β-CD does not affect ...
Margareta Sohora, Leo Mandić, Nikola Basarić   +2 more
openaire   +5 more sources

Synthesis, Photophysical, and Chemiexcitation Properties of Luminol‐Fullerene Dyads: Toward Chemiexcitation Electron Transfer

Chemistry – A European Journal, EarlyView.
The emission properties of fullerene‐luminol dyads, following either irradiation or chemiexcitation, are evaluated. Strong luminol (chemi)luminescence quenching is partially attributed to electron transfer. Abstract Fullerene‐based donor‐acceptor (D‐A) dyads have been extensively studied for their unique electronic properties, with applications in ...
Theodoros Mikroulis, Gemma M. Rodríguez‐Muñiz, Demeter Tzeli, Georgios Rotas, Miguel A. Miranda, Georgios C. Vougioukalakis   +5 more
wiley   +1 more source

Deterministic Covalent Organic Functionalization of Monolayer Graphene with 1,3-Dipolar Cycloaddition Via High Resolution Surface Engineering

, 2022
Spatially-resolved organic functionalization of monolayer graphene is successfully achieved by combining low-energy electron beam irradiation with 1,3-dipolar cycloaddition of azomethine ylide.
Basta, Luca, Bellucci, Luca, Bianco, Federica, Fabbri, Filippo, Heun, Stefan, Moscardini, Aldo, Tozzini, Valentina, Veronesi, Stefano   +7 more
core   +1 more source

Studies toward Total Synthesis of (±)-Caldaphnidine C via One-Pot Sequential Intramolecular Vilsmeier-Haack and Azomethine Ylide 1,3-Dipolar Cycloaddition.

Journal of Organic Chemistry, 2016
An application of a one-pot sequential Vilsmeier-Haack cyclization and intramolecular azomethine ylide 1,3-dipolar cycloaddition toward the total synthesis of (±)-caldaphnidine C is presented.
Jonathan Boudreault, F. Lévesque, G. Bélanger   +2 more
semanticscholar   +1 more source

Ferrocene-derived P,N ligands : synthesis and application in enantioselective catalysis [PDF]

, 2013
Due to their unique steric and electronic properties, air-stability and modular structure, chiral hybrid P,N-ferrocenyl ligands play a prominent role in the field of asymmetric catalysis.
Noël, Timothy, Van der Eycken, Johan
core   +1 more source

Domino Multicomponent Approach for the Synthesis of Functionalized Spiro-Indeno[1,2-b]quinoxaline Heterocyclic Hybrids and Their Antimicrobial Activity, Synergistic Effect and Molecular Docking Simulation

Molecules, 2019
An expedient synthesis of hitherto unexplored novel hybrid heterocycles comprising dispiropyrrolidine, N-styrylpiperidone and indeno[1,2-b]quinoxaline units has been developed via domino multicomponent 1,3-dipolar cycloaddition strategy employing a new ...
Abdulrahman I. Almansour, Natarajan Arumugam, Raju Suresh Kumar, Dhaifallah M. Al-thamili, Govindasami Periyasami, Karuppiah Ponmurugan, Naif Abdullah Al-Dhabi, Karthikeyan Perumal, Dhanaraj Premnath   +8 more
doaj   +1 more source

Synthesis of the tricyclic core of manzamine A [PDF]

, 2015
An efficient synthetic approach to the core structure of the manzamine alkaloids is reported, particularly in relation to incorporating a one-carbon unit in ring B from which the aldehyde in ircinal A or the beta-carboline unit in manzamine A could ...
Ageel, K.A., Alshawish, M.R., Coldham, I., Dobson, B.C., Ghosh, N., Pathak, R.B., Saruengkhanphasit, R.   +6 more
core   +1 more source

Highly Efficient Construction of Sugar-Fused Spirochromanono Pyrrolidines/Pyrrolizidines/Thiolizidines via 1,3-Dipolar Cycloaddition of Azomethine Ylides

SynOpen, 2017
A variety of sugar-fused chromanono pyrrolidines/pyrrolizidines/thiolizidines have been synthesized by intermolecular 1,3-dipolar cycloaddition reaction of azomethine ylides (generated from glucose aldehyde and different secondary amino acids) with ...
Sirisha Nallamala, Srikumar Mannem, Raghunathan Raghavachary   +2 more
doaj   +1 more source

A Molecular Electron Density Theory Study of the [3+2] Cycloaddition Reaction of Pseudo(mono)radical Azomethine Ylides with Phenyl Vinyl Sulphone

Organics, 2022
The [3+2] cycloaddition (32CA) reaction of an azomethine ylide (AY), derived from isatin and L-proline, with phenyl vinyl sulphone has been studied within Molecular Electron Density Theory (MEDT) at the ωB97X-D/6-311G(d,p) level. ELF topological analysis
Mar Ríos-Gutiérrez, Assem Barakat, Luis R. Domingo   +2 more
doaj   +1 more source