Articles producció científica> Química Física i Inorgànica

Remote 1,4-Carbon-to-Carbon Boryl Migration: From a Mechanistic Challenge to a Valuable Synthetic Application of Bicycles

  • Datos identificativos

    Identificador: imarina:9363661
    Autores:
    Dominguez-Molano PSolé-Daura ACarbó JJFernández E
    Resumen:
    The present paper reports a remote carbon-to-carbon boryl migration via an intramolecular 1,4-B/Cu shift, which establishes an in situ stereospecific electrophilic trap on the alkene moiety. The synthetic application is developed to prepare functionalized cyclopentenes by means of a palladium-catalyzed regioselective intramolecular coupling that completes a strategic cyclopropanation and generates valuable structural bicyclic systems. The mechanism is characterized by DFT (density functional theory) calculations which showed that the 1,4-migration proceeds through an intramolecular, nucleophilic attack of the copper-alkyl moiety on the boron atom bonded to the C(sp2), leading to a 5-membered boracycle structure. The computation of the 1,3- and 1,4-B/Cu shifts is also compared as is the impact of the endo- or exocyclic alkene on the reaction kinetics.The intramolecular 1,4-B/Cu shift justifies the observed remote carbon-to-carbon boryl migration, which makes stereoselective electrophilic trapping on the alkene moiety possible. Subsequent palladium-catalyzed regioselective intramolecular coupling enables functionalized cyclopentenes to be prepared that complete strategic cyclopropanation and deliver structurally valuable bicyclic systems. DFT mechanistic studies show that remote boryl migration occurs efficiently through 5-membered boracycle intermediates. image
  • Otros:

    Autor según el artículo: Dominguez-Molano P; Solé-Daura A; Carbó JJ; Fernández E
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: Carbó Martin, Jorge Juan / Fernández Gutiérrez, Maria Elena / Fernández López, Elena
    Palabras clave: Simmons-smith Molecular calculations Mechanism Hydroxyboronate esters Effective core potentials Copper Boryl migration Bicycles Basis-sets Atoms Aryl Alkenes Aldehydes 1,4-migration
    Resumen: The present paper reports a remote carbon-to-carbon boryl migration via an intramolecular 1,4-B/Cu shift, which establishes an in situ stereospecific electrophilic trap on the alkene moiety. The synthetic application is developed to prepare functionalized cyclopentenes by means of a palladium-catalyzed regioselective intramolecular coupling that completes a strategic cyclopropanation and generates valuable structural bicyclic systems. The mechanism is characterized by DFT (density functional theory) calculations which showed that the 1,4-migration proceeds through an intramolecular, nucleophilic attack of the copper-alkyl moiety on the boron atom bonded to the C(sp2), leading to a 5-membered boracycle structure. The computation of the 1,3- and 1,4-B/Cu shifts is also compared as is the impact of the endo- or exocyclic alkene on the reaction kinetics.The intramolecular 1,4-B/Cu shift justifies the observed remote carbon-to-carbon boryl migration, which makes stereoselective electrophilic trapping on the alkene moiety possible. Subsequent palladium-catalyzed regioselective intramolecular coupling enables functionalized cyclopentenes to be prepared that complete strategic cyclopropanation and deliver structurally valuable bicyclic systems. DFT mechanistic studies show that remote boryl migration occurs efficiently through 5-membered boracycle intermediates. image
    Áreas temáticas: Physics and astronomy (miscellaneous) Physics and astronomy (all) Nanoscience & nanotechnology Medicine (miscellaneous) Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) General physics and astronomy General materials science General engineering General chemical engineering Engineering (miscellaneous) Engineering (all) Chemistry, multidisciplinary Chemical engineering (miscellaneous) Chemical engineering (all) Biochemistry, genetics and molecular biology (miscellaneous)
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: j.carbo@urv.cat mariaelena.fernandez@urv.cat
    Identificador del autor: 0000-0002-3945-6721 0000-0001-9025-1791
    Fecha de alta del registro: 2024-08-03
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://onlinelibrary.wiley.com/doi/full/10.1002/advs.202309779
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Advanced Science. 11 (16):
    Referencia de l'ítem segons les normes APA: Dominguez-Molano P; Solé-Daura A; Carbó JJ; Fernández E (2024). Remote 1,4-Carbon-to-Carbon Boryl Migration: From a Mechanistic Challenge to a Valuable Synthetic Application of Bicycles. Advanced Science, 11(16), -. DOI: 10.1002/advs.202309779
    DOI del artículo: 10.1002/advs.202309779
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2024
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Biochemistry, Genetics and Molecular Biology (Miscellaneous),Chemical Engineering (Miscellaneous),Chemistry, Multidisciplinary,Engineering (Miscellaneous),Materials Science (Miscellaneous),Materials Science, Multidisciplinary,Medicine (Miscellaneous),Nanoscience & Nanotechnology,Physics and Astronomy (Miscellaneous)
    Simmons-smith
    Molecular calculations
    Mechanism
    Hydroxyboronate esters
    Effective core potentials
    Copper
    Boryl migration
    Bicycles
    Basis-sets
    Atoms
    Aryl
    Alkenes
    Aldehydes
    1,4-migration
    Physics and astronomy (miscellaneous)
    Physics and astronomy (all)
    Nanoscience & nanotechnology
    Medicine (miscellaneous)
    Materials science, multidisciplinary
    Materials science (miscellaneous)
    Materials science (all)
    General physics and astronomy
    General materials science
    General engineering
    General chemical engineering
    Engineering (miscellaneous)
    Engineering (all)
    Chemistry, multidisciplinary
    Chemical engineering (miscellaneous)
    Chemical engineering (all)
    Biochemistry, genetics and molecular biology (miscellaneous)
  • Documentos:

  • Cerca a google

    Search to google scholar