title: Direct Syn Addition of Two Silicon Atoms to a C≡C Triple Bond by Si-Si Bond Activation: Access to Reactive Disilylated Olefins.
abstract: A catalytic intramolecular silapalladation of alkynes affords, in good yields and stereoselectively, syn-disilylated heterocycles of different chemical structure and size. When applied to silylethers, this reaction leads to vinylic silanols that undergo a rhodium-catalyzed addition to activated olefins, providing the oxa-Heck or oxa-Michael products, depending on the reaction conditions.
authors.affiliation: Normandie Université, UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038), 76000, Rouen, France.
authors.forename: Maha
authors.initials: M
authors.lastname: Ahmad
authors.affiliation: Normandie Université, UNICAEN, ENSICAEN, CNRS, LCMT (UMR 6507 & FR 3038), 14000, Caen, France.
authors.forename: Annie-Claude
authors.initials: AC
authors.lastname: Gaumont
authors.affiliation: Normandie Université, UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038), 76000, Rouen, France.
authors.forename: Muriel
authors.identifier: 0000-0002-5136-9655
authors.initials: M
authors.lastname: Durandetti
authors.affiliation: Normandie Université, UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038), 76000, Rouen, France.
authors.forename: Jacques
authors.initials: J
authors.lastname: Maddaluno
keywords: cyclization; disilane; heterocycles; palladium; vinylsilane