Search Results - "Ballesteros, Alfredo"

Gold(I)-Catalyzed Addition of Silylacetylenes to Acylsilanes: Synthesis of Indanones by CH Functionalization through a Gold(I) Carbenoid by González, Jairo, Santamaría, Javier, Ballesteros, Alfredo

“…A gold(I)‐catalyzed synthesis of indanones from trimethylsilylacetylenes and acylsilanes is presented. The reaction is initiated through a synergistic…”
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Asymmetric C2−C3 Cyclopentannulation of the Indole Ring by Barluenga, José, Tudela, Eva, Ballesteros, Alfredo, Tomás, Miguel

“…Chiral nonracemic alkynyl(alkoxy)carbene complexes of tungsten(0) undergo the [3 + 2] cyclization toward α-methylindoles and…”
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Gold-Catalyzed Functionalization of Unactivated C(sp3)H Bonds by Hydride Transfer Facilitated by Alkynylspirocyclopropanes by Barluenga, José, Sigüeiro, Rita, Vicente, Rubén, Ballesteros, Alfredo, Tomás, Miguel, Rodríguez, Miguel A.

“…A Golden Gate: Alkynylspirocyclopropanes served as a template for the development of gold‐catalyzed hydride transfer from unactivated C(sp3)H bonds to…”
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Gold-Catalyzed Rearrangements: Reaction Pathways Using 1-Alkenyl-2-alkynylcyclopropane Substrates by Barluenga, José, Tudela, Eva, Vicente, Rubén, Ballesteros, Alfredo, Tomás, Miguel

“…New reactivity patterns: Gold(I) catalyzes the conversion of cyclopentenes (1/1′) into cyclohexadienes (2/3). This profound skeleton rearrangement comprises…”
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Alkynylcyclopropanes from Terminal Alkynes through Consecutive Coupling to Fischer Carbene Complexes and Selective Propargylene Transfer by Barluenga, José, Tudela, Eva, Vicente, Rubén, Ballesteros, Alfredo, Tomás, Miguel

“…Fis(c)hing for cyclization! The sequential treatment of an acetylide with a Fischer carbene complex and an alkene/diene yields alkynylcyclopropanes with a wide…”
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Differential impacts of health systems and sociocultural environment on vulnerable populations during the COVID-19 pandemic: lessons from four Asia-Pacific countries by Lee, Jakyung, Park, Susan, Jang, Soong-Nang, Reyes, Katherine Ann, Garcia, Jr, Fernando, Canila, Carmelita, Oraño, Joseph, Ballesteros, Alfredo Jose, Muhartini, Tri, Frans, Sandra, Marthias, Tiara, Putri, Likke Prawidya, Mahendradhata, Yodi, De Foo, Chuan

“…This study aims to evaluate healthcare systems and pandemic responses in relation to marginalized and vulnerable groups, identify populations requiring urgent…”
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Capillary HPLC−ICPMS and Tyrosine Iodination for the Absolute Quantification of Peptides Using Generic Standards by Pereira Navaza, Ana, Encinar, Jorge Ruiz, Ballesteros, Alfredo, González, José M, Sanz-Medel, Alfredo

“…The validity of using tyrosine iodination chemistry for the absolute and generic quantification of peptides by capillary high-performance liquid chromatography…”
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Iodine atoms: a new molecular feature for the design of potent transthyretin fibrillogenesis inhibitors by Mairal, Teresa, Nieto, Joan, Pinto, Marta, Almeida, Maria Rosário, Gales, Luis, Ballesteros, Alfredo, Barluenga, José, Pérez, Juan J, Vázquez, Jesús T, Centeno, Nuria B, Saraiva, Maria Joao, Damas, Ana M, Planas, Antoni, Arsequell, Gemma, Valencia, Gregorio

“…The thyroid hormone and retinol transporter protein known as transthyretin (TTR) is in the origin of one of the 20 or so known amyloid diseases. TTR self…”
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Research priority-setting for human, plant, and animal virology: an online experience for the Virology Institute of the Philippines by Sales, Reneepearl Kim, Oraño, Joseph, Estanislao, Rafael Deo, Ballesteros, Alfredo Jose, Gomez, Ma Ida Faye

“…Viral pandemics have had catastrophic consequences on population health and economies. The Philippine government intends to establish the Virology Institute of…”
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COVID-19 public health and social measures: a comprehensive picture of six Asian countries by Foo, Chuan De, Verma, Monica, Tan, See Mieng, Haldane, Victoria, Reyes, Katherine Ann, Garcia, Fernando, Canila, Carmelita, Orano, Joseph, Ballesteros, Alfredo Jose, Marthias, Tiara, Mahendradhata, Yodi, Tuangratananon, Titiporn, Rajatanavin, Nattadhanai, Poungkantha, Warapon, Mai Oanh, Tran, The Due, Ong, Asgari-Jirhandeh, Nima, Tangcharoensathien, Viroj, Legido-Quigley, Helena

“…The COVID-19 pandemic will not be the last of its kind. As the world charts a way towards an equitable and resilient recovery, Public Health and Social…”
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Gold(I)-Catalyzed Addition of Silylacetylenes to Acylsilanes: Synthesis of Indanones by CH Functionalization through a Gold(I) Carbenoid by Gonzalez, Jairo, Santamaria, Javier, Ballesteros, Alfredo

“…A gold(I)-catalyzed synthesis of indanones from trimethylsilylacetylenes and acylsilanes is presented. The reaction is initiated through a synergistic…”
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Formal Insertion of a Metal Carbene Complex into a σ‐Carbon‐Carbon Bond. Gold‐Catalyzed Synthesis of 3 H ‐Indoles by Allegue, Darío, Sampedro, Diego, Ballesteros, Alfredo, Santamaría, Javier

“…We report here a formal insertion of a metal carbene complex in a single carbon‐carbon bond. This behavior occurs with the participation of an α‐imino gold…”
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Gold(I)‐Catalyzed Indole Synthesis through Aza‐Nazarov‐Type Cyclization of α‐Imino Gold Carbene Complexes and Arenes by Allegue, Darío, Santamaría, Javier, Ballesteros, Alfredo

“…Here we report a gold(I)‐catalyzed and atom‐economical ortho‐N‐indolyl‐N‐pyrazolylbenzene synthesis from 1,2,3‐triazapentalenes and ynamides. The reaction…”
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Lewis Acid Enhancement of Gold Catalytic Activity Through Counterion Coordination. Synthesis of Benzofulvenes from Progargylsilanes and Benzophenones by Fernández, Sergio, Santamaría, Javier, Ballesteros, Alfredo

“…A simple, regioselective and high yielding gold‐catalyzed synthesis of benzofulvenes, from progargylsilanes and benzophenones, is described. Initially, the…”
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Formal Insertion of a Metal Carbene Complex into a σ‐Carbon‐Carbon Bond. Gold‐Catalyzed Synthesis of 3H‐Indoles by Allegue, Darío, Sampedro, Diego, Ballesteros, Alfredo, Santamaría, Javier

“…We report here a formal insertion of a metal carbene complex in a single carbon‐carbon bond. This behavior occurs with the participation of an α‐imino gold…”
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Front Cover: Silylium‐Catalyzed Carbon–Carbon Coupling of Alkynylsilanes with (2‐Bromo‐1‐methoxyethyl)arenes: Alternative Approaches (Eur. J. Org. Chem. 45/2018) by Rubial, Belén, Ballesteros, Alfredo, González, José M.

“…The Front Cover shows the coupling reaction of trimethyl alkynyl silanes and (2‐bromo‐1‐methoxyethyl)arenes catalyzed by trimethylsilyl bis(triflimidate), at…”
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[3 + 2] Cycloaddition of Fischer Alkenyl Carbene Complexes to Enamines:  An Efficient Asymmetric Approach to Cyclopentanoids by Barluenga, José, Tomás, Miguel, Ballesteros, Alfredo, Santamaría, Javier, Brillet, Cecile, García-Granda, Santiago, Piñera-Nicolás, Alejandro, Vázquez, Jesús T

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Silylium‐Catalyzed Alkynylation and Etherification Reactions of Benzylic Acetates by Rubial, Belén, Ballesteros, Alfredo, González, José M.

“…Addition of catalytic amounts of bistriflimide triggers useful coupling reactions of benzyl acetates with trimethyl(alkynyl)silanes and…”
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Propargylsilanes as Reagents for Synergistic Gold(I)‐Catalyzed Propargylation of Carbonyl Compounds: Isolation and Characterization of σ‐Gold(I) Allenyl Intermediates by Fernández, Sergio, González, Jairo, Santamaría, Javier, Ballesteros, Alfredo

“…Reported herein is the isolation and characterization, for the first time, of a σ‐gold allenyl complex as an intermediate in gold catalysis. This intermediate…”
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Diastereoselective and Synergistic Gold‐Catalyzed Bispropargylation of Xanthones and Thioxanthones: An Access to Xanthene Derivatives by Fernández, Sergio, Allegue, Darío, Santamaría, Javier, Ballesteros, Alfredo

“…A gold‐catalyzed bispropargylation of xanthone derivatives is described. The use of propargylsilanes permits to achieve a deoxygenative bispropargylation…”
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