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Listar por autor "Lassaletta, José M."
Mostrando ítems 1-20 de 21
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Artículo
A Dynamic Kinetic C-P Cross-Coupling for the Asymmetric Synthesis of Axially Chiral P,N Ligands
Ramírez-López, Pedro; Ros, Abel; Estepa, Beatriz; Fernández Fernández, Rosario Fátima; Fiser, Béla; Gómez-Bengoa, Enrique; Lassaletta, José M. (American Chemical Society, 2016)The Pd-catalyzed enantioselective C-P cross-coupling between racemic, configurationally stable heterobiaryl triflates and ...
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Artículo
Asymmetric organocatalytic Strecker-type reactions of aliphatic N,N-dialkylhydrazones
Martínez Muñoz, Aurora; Monge Fernández, David; Martín Zamora, Eloísa; Marqués López, Eugenia; Álvarez González, Eleuterio; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Royal Society of Chemistry (Great Britain), 2013)The enantioselective organocatalytic Strecker-type reaction of aliphatic N,N-dialkylhydrazones is presented. Using ...
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Artículo
Asymmetric Organocatalytic Synthesis of Fluorinated β-Hydroxy Diazenes
Matador Martínez, Esteban; de Gracia Retamosa, María; Jiménez Sánchez, Antonio; Monge Fernández, David; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Wiley-Blackwell, 2019)The nucleophilic addition of formaldehyde tert-butyl hydrazone to fluoromethyl ketones provides a valuable tool for the ...
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Asymmetric organocatalytic synthesis of tertiary azomethyl alcohols: key intermediates towards azoxy compounds and α-hydroxy-β-amino esters
Carmona, José A.; Gonzalo Calvo, Gonzalo de; Serrano Vallez, Inmaculada; Crespo-Peña, Ana; Šimek, Michal; Monge Fernández, David; Fernández, Rafael; Lassaletta, José M. (Royal Society of Chemistry (Great Britain), 2017)A series of peracylated glycosamine-derived thioureas have been synthesized and their behavior as bifunctional organocatalysts ...
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Artículo
Asymmetric synthesis of dibenzo[b,d]azepines by Cu-catalyzed reductive or borylative cyclization
Rodríguez Salamanca, Patricia; Martín de la Calle, Rocío; Rodríguez Bravo, Verónica; Merino, Pedro; Fernández Fernández, Rosario Fátima; Lassaletta, José M.; Hornillos, Valentín (Royal Society of Chemistry, 2021)A copper-catalyzed asymmetric intramolecular reductive cyclization for the synthesis of dibenzo[b,d]azepines is described. ...
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Artículo
Atroposelective transformation of axially chiral (hetero)biaryls. From desymmetrization to modern resolution strategies
Carmona, José A.; Rodríguez Franco, Carlos; Fernández Fernández, Rosario Fátima; Hornillos, Valentín; Lassaletta, José M. (Royal Society of Chemistry, 2021)This tutorial review provides a systematic overview of the available methodologies for the atroposelective transformation ...
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Artículo
AuI-Catalyzed Hydroalkynylation of Haloalkynes
García Fernández, Pedro David; Iglesias Sigüenza, Francisco Javier; Rivero Jerez, Paula S.; Díez Martín, Elena; Gómez Bengoa, Enrique; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (American Chemical Society, 2020)The AuI-catalyzed reaction between terminal alkynes and aromatic haloalkynes proceeds through divergent pathways depending ...
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Axially Chiral Triazoloisoquinolin-3-ylidene Ligands in Gold(I)-catalyzed Asymmetric Intermolecular (4 + 2) Cycloadditions of Allenamides and Dienes
Francos, Javier; Grande Carmona, Francisca; Faustino, Hélio; Iglesias Sigüenza, Francisco Javier; Díez Martín, Elena; Alonso, Isaac; Fernández Fernández, Rosario Fátima; Lassaletta, José M.; López, Fernando; Mascareñas, José L. (American Chemical Society, 2012)The first highly enantioselective intermolecular (4 + 2) cycloaddition between allenes and dienes is reported. The reaction ...
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Artículo
Bifunctional Squaramide Organocatalysts for the Asymmetric Addition of Formaldehyde tert-Butylhydrazone to Simple Aldehydes
Matador Martínez, Esteban; de Gracia Retamosa, María; Monge Fernández, David; Iglesias Sigüenza, Francisco Javier; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Wiley-Blackwell, 2018)The nucleophilic addition of formaldehyde tert-butylhydrazone to simple aldehydes (a formal hetero-carbonyl–ene reaction) ...
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Artículo
Biocatalytic Atroposelective Synthesis of Axially Chiral N-Arylindoles via Dynamic Kinetic Resolution
Rodríguez Salamanca, Patricia; Gonzalo Calvo, Gonzalo de; Carmona, José A.; López Serrano, Joaquín; Iglesias Sigüenza, Francisco Javier; Fernández Fernández, Rosario Fátima; Lassaletta, José M.; Hornillos, Valentín (American Chemical Society, 2022-12-22)A highly enantioselective biocatalytic dynamic kinetic resolution (DKR) of configurationally labile N-arylindole aldehydes ...
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Dynamic Kinetic Resolution of Hetero biaryl Ketones by Zinc- Catalyzed Asymmetr ic Hydrosil ylation
Hornillos, Valentín; Carmona, José A.; Ros Lao, Abel; Iglesias Sigüenza, Francisco Javier; López Serrano, Joaquín; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Wiley, 2018)Adiastereo- and highly enantioselective dynamic kinetic resolution (DKR) of configurationally labile hetero- biaryl ketones is ...
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Artículo
Formaldehyde tert-butyl hydrazone as a formyl anion equivalent: asymmetric addition to carbonyl compounds
Matador Martínez, Esteban; Retamosa Hernández, María Gracia; Monge Fernández, David; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Royal Society of Chemistry, 2020)The asymmetric 1,2-addition of formyl anion equivalents to carbonyl compounds is a powerful synthetic tool that ideally ...
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Artículo
Hydrazones as Singular Reagents in Asymmetric Organocatalysis
Retamosa Hernández, María Gracia; Matador Martínez, Esteban; Monge Fernández, David; Lassaletta, José M.; Fernández Fernández, Rosario Fátima (John Wiley & Sons, 2016)This Minireview summarizes strategies and developments regarding the use of hydrazones as reagents in asymmetric ...
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Artículo
Ir-Catalyzed Atroposelective Desymmetrization of Heterobiaryls: Hydroarylation of Vinyl Ethers and Bicycloalkenes
Romero Arenas, Antonio; Hornillos, Valentín; Iglesias Sigüenza, Francisco Javier; Fernández Fernández, Rosario Fátima; López Serrano, Joaquín; Ros, Abel; Lassaletta, José M. (American Chemical Society, 2020)A highly regio-, diastereo-, and enantioselective, scalable Ir-catalyzed hydroarylation of electron-rich acyclic and ...
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Artículo
N-Heterotricyclic Cationic Carbene Ligands. Synthesis, Reactivity and Coordination Chemistry
Iglesias Sigüenza, Francisco Javier; Izquierdo, Cristina; Díez Martín, Elena; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Royal Society of Chemistry, 2018)The direct dialkylation of triazolo[4,3-b]isoquinolin-3-ylidene structures readily affords dicationic N-heterotricyclic ...
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Artículo
Preparation of Chitosan-supported Urea Materials and their Application in Some Organocatalytic Procedures
Gonzalo Calvo, Gonzalo de; Franconetti García, Antonio; Fernández Fernández, Rosario Fátima; Lassaletta, José M.; Cabrera Escribano, Francisca (Elsevier, 2018)An efficient and mild procedure was developed for the preparation of three chitosan-supported ureas containing ...
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Artículo
Pyridine-Hydrazone Ligands in Asymmetric Palladium-Catalyzed 1,4- and 1,6-Additions of Arylboronic Acids to Cyclic (Di)enones
de Gracia Retamosa, María; Álvarez Casao, Yolanda; Matador Martínez, Esteban; Gómez, Ángela; Monge Fernández, David; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Wiley-Blackwell, 2019)Catalysts generated by combinations of Pd(TFA)2 and enantiomerically pure pyridine-hydrazone ligands have been applied to ...
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Artículo
Pyridine–hydrazone ligands in enantioselective palladium-catalyzed Suzuki–Miyaura cross-couplings
Álvarez Casao, Yolanda; Estepa, Beatriz; Monge Fernández, David; Ros, Abel; Iglesias Sigüenza, Francisco Javier; Álvarez, Eleuterio; Fernández Fernández, Rosario Fátima; Lassaletta, José M. (Elsevier, 2016)The geometries and coordination properties of modular pyridineehydrazone N,N-ligands containing C2- symmetric ...
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Red-Emitting Tetracoordinate Organoboron Chelates: Synthesis, Photophysical Properties, and Fluorescence Microscopy
Pais, Vânia F.; Ramírez López, Pedro; Romero Arenas, Antonio; Collado, Daniel; Nájera, Francisco; Pérez Inestrosa, Ezequiel; Fernández Fernández, Rosario Fátima; Lassaletta, José M.; Ros, Abel; Pischel, Uwe (American Chemical Society, 2016)Seven tetracoordinate organoboron fluorophores with heterobiaryl N,O- or N,N-chelate ligands were prepared and photophysically ...
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Artículo
Strongly Emissive and Photostable Four-Coordinate Organoboron N,C Chelates and Their Use in Fluorescence Microscopy
Pais, Vânia F.; Alcaide, María M.; López Rodríguez, Rocío; Collado, Daniel; Nájera, Francisco; Pérez Inestrosa, Ezequiel; Álvarez, Eleuterio; Lassaletta, José M.; Fernández Fernández, Rosario Fátima; Ros Lao, Abel; Pischel, Uwe (Wiley-Blackwell, 2015)Six strongly fluorescent four-coordinate organoboron N,C chelates containing an aryl isoquinoline skeleton were prepared. ...