Search Results - "Uria, Uxue"

Catalytic Enantioselective Cloke–Wilson Rearrangement by Ortega, Alesandere, Manzano, Rubén, Uria, Uxue, Carrillo, Luisa, Reyes, Efraim, Tejero, Tomas, Merino, Pedro, Vicario, Jose L.

“…Racemic cyclopropyl ketones undergo enantioselective rearrangement to deliver the corresponding dihydrofurans in the presence of a chiral phosphoric acid as…”
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Chiral Organic Contact Ion Pairs in Metal-Free Catalytic Asymmetric Allylic Substitutions by Rueping, Magnus, Uria, Uxue, Lin, Ming-Yuan, Atodiresei, Iuliana

“…Chiral contact ion-pair catalysis with particular focus on metal-free processes is gaining in interest. As a result, new perspectives are opened, and highly…”
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Catalytic Enantioselective [5+2] Cycloaddition between Oxidopyrylium Ylides and Enals under Dienamine Activation by Orue, Ane, Uria, Uxue, Reyes, Efraim, Carrillo, Luisa, Vicario, Jose L.

“…Benzopyrylium ylides generated in situ from 1‐acetoxyisochroman‐4‐ones reacted with α,β‐unsaturated aldehydes in the presence of a bifunctional…”
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Direct Catalytic Azidation of Allylic Alcohols by Rueping, Magnus, Vila, Carlos, Uria, Uxue

“…A direct catalytic azidation of primary, secondary, and tertiary allylic alcohols has been developed. This new azidation reaction affords the corresponding…”
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Enantioselective Oxidative (4+3) Cycloadditions between Allenamides and Furans through Bifunctional Hydrogen‐Bonding/Ion‐Pairing Interactions by Villar, Laura, Uria, Uxue, Martínez, Jose I., Prieto, Liher, Reyes, Efraim, Carrillo, Luisa, Vicario, Jose L.

“…BINOL‐based N‐trifluoromethanesulfonyl phosphoramides catalyze the enantioselective (4+3) cycloaddition between furans and oxyallyl cations, the latter being…”
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Organocatalytically Generated Donor–Acceptor Cyclopropanes in Domino Reactions. One-Step Enantioselective Synthesis of Pyrrolo[1,2‑a]quinolines by Sanchez-Diez, Eduardo, Vesga, Diana L, Reyes, Efraim, Uria, Uxue, Carrillo, Luisa, Vicario, Jose L

“…An easy and straightforward procedure has been developed for the synthesis of highly enantioenriched pyrrolo­[1,2-a]­quinolines through a one-pot process that…”
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Catalytic Asymmetric Domino Michael Addition−Alkylation Reaction: Enantioselective Synthesis of Dihydrofurans by Rueping, Magnus, Parra, Alejandro, Uria, Uxue, Besselièvre, François, Merino, Estíbaliz

“…A catalytic enantioselective synthesis of dihydrofurans has been developed. 1,3-Dicarbonyl derivatives react with (E)-β,β-bromonitrostyrenes in the presence of…”
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Asymmetric Dual Enamine Catalysis/Hydrogen Bonding Activation by Efraím Reyes, Liher Prieto, Uxue Uria, Luisa Carrillo, Jose L. Vicario

“…Asymmetric enamine base activation of carbonyl compounds is a well-known and widely used strategy for providing functionalization of organic compounds in an…”
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Enantioselective Synthesis of Tertiary Propargylic Alcohols under N-Heterocyclic Carbene Catalysis by Sánchez-Díez, Eduardo, Fernández, Maitane, Uria, Uxue, Reyes, Efraim, Carrillo, Luisa, Vicario, Jose L.

“…A straightforward procedure to carry out the enantioselective benzoin reaction between aldehydes and ynones by employing a chiral N‐heterocyclic carbene (NHC)…”
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Organocatalytic activation of cyclopropanes in asymmetric synthesis by Reyes, Efraím, Uria, Uxue, Prieto, Liher, Carrillo, Luisa, Vicario, Jose L.

“…Cyclopropanes are strained carbocycles that can undergo ring opening reactions in which one of the C–C bond present in the cycle is broken following a radical…”
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Favoring Trienamine Activation through Unconjugated Dienals: Organocatalytic Enantioselective Remote Functionalization of Alkenes by Prieto, Liher, Talavera, Garazi, Uria, Uxue, Reyes, Efraim, Vicario, Jose L., Carrillo, Luisa

“…Unconjugated 2,5‐dienals are more reactive substrates than the corresponding fully conjugated α,β,γ,δ‐unsaturated aldehydes towards organocatalytic activation…”
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Kinetic Resolution in Transannular Morita-Baylis-Hillman Reaction: An Approximation to the Synthesis of Sesquiterpenes from Guaiane Family by Raquel Mato, Rubén Manzano, Efraím Reyes, Liher Prieto, Uxue Uria, Luisa Carrillo, Jose L. Vicario

“…An approximation to the synthesis of several sesquiterpenes from the Guaiane family is described in which the core structure was obtained through a…”
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5-Mercaptotetrazoles as Synthetic Equivalents of Nitrogen-Contaning Functional Groups. The Case of the Organocatalytic Enantioselective aza-Michael Reaction by Uria, Uxue, Reyes, Efraím, Vicario, Jose L, Badía, Dolores, Carrillo, Luisa

“…5-Mercaptotetrazoles have been identified as useful and versatile Michael donors in enantioselective amine-catalyzed aza-Michael reactions with α,β-unsaturated…”
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Organocatalytic and enantioselective Michael reaction between α-nitroesters and nitroalkenes. Syn/anti-selectivity control using catalysts with the same absolute backbone chirality by Martínez, Jose I, Uria, Uxue, Muñiz, Maria, Reyes, Efraím, Carrillo, Luisa, Vicario, Jose L

“…The asymmetric and catalytic Michael reaction between α-nitroesters and nitroalkenes has been studied in the presence of two bifunctional catalysts both…”
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Base free catalyzed enantioselective Michael reaction of bis(phenylsulfonyl)methane to α,β -unsaturated aldehydes under iminium activation by Alonso, Beatriz, Uria, Uxue, Carrillo, Luisa, Vicario, Jose L, Reyes, Efraim

“…The Michael reaction of bis(phenylsulfonyl)methane with α,β-unsaturated aldehydes in the presence of catalytic amounts of a chiral secondary amine is…”
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Catalytic Enantioselective Cloke–Wilson Rearrangement by Ortega, Alesandere, Manzano, Rubén, Uria, Uxue, Carrillo, Luisa, Reyes, Efraim, Tejero, Tomas, Merino, Pedro, Vicario, Jose L.

“…Racemic cyclopropyl ketones undergo enantioselective rearrangement to deliver the corresponding dihydrofurans in the presence of a chiral phosphoric acid as…”
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Enantioselective Oxidative (4+3) Cycloadditions between Allenamides and Furans through Bifunctional Hydrogen‐Bonding/Ion‐Pairing Interactions by Villar, Laura, Uria, Uxue, Martínez, Jose I., Prieto, Liher, Reyes, Efraim, Carrillo, Luisa, Vicario, Jose L.

“…BINOL‐based N‐trifluoromethanesulfonyl phosphoramides catalyze the enantioselective (4+3) cycloaddition between furans and oxyallyl cations, the latter being…”
Get full text

Catalytic Enantioselective [5+2] Cycloaddition between Oxidopyrylium Ylides and Enals under Dienamine Activation by Orue, Ane, Uria, Uxue, Reyes, Efraim, Carrillo, Luisa, Vicario, Jose L.

“…Benzopyrylium ylides generated in situ from 1‐acetoxyisochroman‐4‐ones reacted with α,β‐unsaturated aldehydes in the presence of a bifunctional…”
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Catalytic Enantioselective Transannular Morita–Baylis–Hillman Reaction by Mato, Raquel, Manzano, Rubén, Reyes, Efraim, Carrillo, Luisa, Uria, Uxue, Vicario, Jose L

“…Catalytic and enantioselective approaches to transannular reactions are very limited and mostly are based on chiral Lewis acid catalyzed pericyclic reactions…”
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Mechanistic Insights on the Enantioselective (4+3) Cycloaddition Between Oxyallylcations and Furans Catalyzed by BINOL‐Based Phosphoramides by Pedrón, Manuel, Villar, Laura, Uria, Uxue, Prieto, Liher, Tejero, Tomas, Merino, Pedro, Vicario, Jose L.

“…The mechanism of the enantioselective (4+3) cycloaddition between furan derivatives and oxyallylcations, which are generated from the corresponding oxiranes…”
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