Browsing by Subject "HETEROCYCLES"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- PublicationOpen Access2-Arylacetamides as Versatile Precursors for 3-Aminoisocoumarin and Homophthalimide Derivatives: Palladium-Catalyzed Cascade Double Carbonylation Reactions(Wiley, 2016-07-11) Frutos-Pedreño, Roberto; García-López, José-Antonio; García-López, José-Antonio; Química Inorgánica
- PublicationOpen AccessChemodivergent Conversion of Ketenimines Bearing Cyclic Dithioacetalic Units into Isoquinoline-1-thiones or Quinolin-4-ones as a Function of the Acetalic Ring Size(2019-06-21) Alajarín, Mateo; Marin-Luna, Marta; Sanchez-Andrada, Pilar; Vidal, Angel; Química OrgánicaC-Alkoxycarbonyl-C-phenyl-N-aryl ketenimines bearing 1,3-dithiolan-2-yl or 1,3-dithian-2-yl substituents at ortho position of the C-phenyl ring, respectively, transform into isoquino-line-1-thiones and quinolin-4-ones under thermal treatment in toluene solution. The formation of isoquinolinethiones involves a rare degradation of the 1,3-dithiolane ring, whereas, in contrast, the 1,3-dithiane ring remains intact during the reaction course leading to quinolin-4-ones. Computational density functional theory results support that the kinetically favorable mechanism for the formation of isoquinoline-l-thiones proceeds through a [1,5]-hydride shift/6 pi-electrocyclization cascade, followed by a thiirane extrusion process. Alternative mechanistic paths showing interesting electronic reorganization processes have been also scrutinized but resulted not competitive on energetic grounds.
- PublicationOpen AccessSynthesis of [3.4]-Spirooxindoles through Cascade Carbopalladation of Skipped Dienes(Wiley, 2020-03-24) Azizollahi, Hamid; Pérez-Gómez, Marta; Mehta, V. P.; García-López, José-Antonio; García-López, José-Antonio; Química Inorgánica