Výsledky vyhledávání - "química orgànica"

Photocatalytic Functionalization of Dihydroquinoxalin‐2‐Ones with Pyrazolones

Autor: Jaume Rostoll‐Berenguer, Francisco J. Sierra‐Molero, Gonzalo Blay, José R. Pedro, Carlos Vila

Publikováno v: Rostoll Berenguer, Jaume Sierra-Molero, Francisco J. Blay Llinares, Gonzalo Pedro, José Ramón Vila Descals, Carlos 2022 Photocatalytic Functionalization of Dihydroquinoxalin-2-Ones with Pyrazolones Advanced Synthesis & Catalysis 364 23 4054 4060

A visible-light photoredox functionalization of 3,4-dihydro-quinoxalin-2-ones with pyrazolones using an inexpensive organophotoredox catalyst is described. The reaction uses 9,10-phenanthrenedione as photocatalyst, a very simple and cheap photocataly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d2918eb5492477a2816cc47d07ec000
https://doi.org/10.1002/adsc.202201018

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Computational Study on the Co-Mediated Intramolecular Pauson–Khand Reaction of Fluorinated and Chiral N-Tethered 1,7-Enynes

Autor: Jorge Escorihuela, Lawrence M. Wolf

Publikováno v: Escorihuela Fuentes, Jorge Wolf, Lawrence M. 2022 Computational Study on the Co-Mediated Intramolecular Pauson-Khand Reaction of Fluorinated and Chiral N-Tethered 1,7-Enynes Organometallics 41 18 2525 2534

The Co2(CO)8-mediated intramolecular Pauson−Khand reaction is an elegant approach to obtain cyclopentenone derivatives containing asymmetric centers. In this work, we employed density functional theory calculations at the M11/6-311+G(d,p) level of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4037db40d4d898cec3423b6ce2fa07a5
https://doi.org/10.1021/acs.organomet.2c00227

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Synthesis and Study of Functionalized Porphyrins as Organophotoredox Catalysts

Autor: Torres Yeste, Pol

[eng] Visible-light photocatalysis is currently one of the hottest research areas in organic chemistry, due to the possibility that offers to form C-C and C-Het bonds in a green, non-toxic and efficient way. Although visible-light photocatalysis has

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______963::7f5c47ebec46eede3bdb4d68df623e50
http://hdl.handle.net/10803/687402

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A Cu-BOX catalysed enantioselective Mukaiyama-aldol reaction with difluorinated silyl enol ethers and acylpyridine

Autor: Amparo Sanz-Marco, Daniel Esperilla, Marc Montesinos-Magraner, Carlos Vila, M. Carmen Muñoz, José R. Pedro, Gonzalo Blay

Publikováno v: Sanz Marco, Amparo Esperilla, Daniel Montesinos Magraner, Marc Vila Descals, Carlos Muñoz, M. Carmen Pedro, José Ramón Blay Llinares, Gonzalo 2023 A Cu-BOX catalysed enantioselective Mukaiyama-aldol reaction with difluorinated silyl enol ethers and acylpyridine N-oxides Organic & Biomolecular Chemistry 21 2 345 350

A Cu(II)/BOX complex catalyses the enantioselective addition of difluorinated silyl enol ethers to acylpyridine N-oxides. The reaction provides difluorinated chiral tertiary alcohols of great interest in medicinal chemistry. These compounds are obtai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb433665796d36b1e7ce33e6d0baa0e0
https://pubmed.ncbi.nlm.nih.gov/36484719

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Generació de 'building blocks' enantiopurs amb un estereocentre quaternari. Aplicació a la síntesi de productes naturals i compostos biològicament actius

Autor: Ordeix i Utiel, Sergi

[cat] Els alcaloides indòlics monoterpènics del grup leuconolam-leuconoxina-mersicarpina [(–)- mersicarpina, (–)-leuconoxina, (+)-melodinina E] i la (–)-kopsiyunnanina K presenten una interessant activitat biològica juntament amb estructures

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______963::77c8a2b92f165ce9352f49ebc1c4950e
http://hdl.handle.net/2445/192902

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Optimización de etapas claves en la síntesis de Palmerolidas. Síntesis de la Palmerolida

Autor: Arribas Crovara, Maria Fernanda

[spa] En el primer bloque de la tesis describimos nuestra aproximación a la síntesis total de la Palmerolida D, un compuesto de gran interés, tanto por sus propiedades antitumorales como por la diversidad de reacciones necesarias para llevar a cab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______963::bd87f145e9cc29ab00338a7a670bf24b
http://hdl.handle.net/2445/191371

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P-Stereogenic ligands: synthesis and application to asymmetric hydrogenation

Autor: Rojo Solé, Josep Maria

[eng] P-Stereogenic ligands have demonstrated to be highly efficient for asymmetric catalysis, especially in metal-catalyzed asymmetric hydrogenation reactions. Among them, those bearing bulky substituents at phosphorus have emerged as one of the bes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______963::9da4893463ef1874c0a70a7e76924f8e
http://hdl.handle.net/10803/687210

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Ionic multiresonant thermally activated delayed fluorescence emitters for light emitting electrochemical cells

Autor: Merve Karaman, Abhishek Kumar Gupta, Subeesh Madayanad Suresh, Tomas Matulaitis, Lorenzo Mardegan, Daniel Tordera, Henk J Bolink, Sen Wu, Stuart Warriner, Ifor D Samuel, Eli Zysman-Colman

Publikováno v: Karaman, Merve Gupta, Abhishek Kumar Suresh, Subeesh Madayanad Matulaitis, Tomas Mardegan, Lorenzo Tordera Salvador, Daniel Bolink, Henk Wu, Sen Warriner, Stuart Samuel, Ifor D. Zysman-Colman, Eli 2022 Ionic multiresonant thermally activated delayed fluorescence emitters for light emitting electrochemical cells Beilstein Journal Of Organic Chemistry 18 1311 1321

Funding: M. K. would like to thank 2214-A International Research Fellowship Programme for Ph.D. students (1059B141900585). This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sk

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0fdfbf9056f5bf9a7c0f819604652f2
https://hdl.handle.net/10023/26306

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Hydrogen Production from Methanol-Water Solution and Pure Water Electrolysis Using Nanocomposite Perfluorinated Sulfocationic Membranes Modified by Polyaniline

Autor: Carlos Sanchez, Francisco J. Espinos, Arturo Barjola, Jorge Escorihuela, Vicente Compañ

Publikováno v: Escorihuela Fuentes, Jorge Sánchez, Carlos Espinos, Francisco J. Barjola, Arturo Compañ, Vicente 2022 Hydrogen Production from Methanol-Water Solution and Pure Water Electrolysis Using Nanocomposite Perfluorinated Sulfocationic Membranes Modified by Polyaniline. Polymers 14 21 1 18
Polymers; Volume 14; Issue 21; Pages: 4500

In this work, we report the preparation of Nafion membranes containing two different nanocomposite MF-4SC membranes, modified with polyaniline (PANI) by the casting method through two different polyaniline infiltration procedures. These membranes wer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::804a157370f395af527521b3b6e0140b
https://pubmed.ncbi.nlm.nih.gov/36365494

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Nitroenynes as Electrophiles in Organocatalysis and their Application in the Synthesis of Chiral Heterocycles

Autor: Gonzalo Blay, Carlos Vila, Francisco Cernicharo-Toledo, José R. Pedro

Publikováno v: Vila Descals, Carlos Cernicharo‐Toledo, Francisco Blay Llinares, Gonzalo Pedro, José Ramón 2021 Nitroenynes as Electrophiles in Organocatalysis and their Application in the Synthesis of Chiral Heterocycles European Journal of Organic Chemistry 2021 16 2255 2267

Nitroenynes are an interesting electrophile in asymmetric organocatalysis, due to the versatility of the functional groups present in its structure. This review covers the organocatalytic examples using this electrophile and its application for the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::277422ad4eeb6a649550fe23ee740a4b
https://doi.org/10.1002/ejoc.202100208

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