Resumen: The dinuclear complex Rh(mu-Cl)(eta(2)-coe)(IPr)](2) is an efficient catalyst for the O-selective Markovnikov-type addition of 2-pyridones to terminal alkynes. DFT calculations support a hydride-free pathway entailing intramolecular oxidative protonation of a pi-alkyne by a kappa N-1-hydroxypyridine ligand. Subsequent O-nucleophilic attack on a metallacyclopropene species affords an O-alkenyl-2-oxypyridine chelate rhodium intermediate as the catalyst resting state. The release of the alkenyl ether is calculated as the rate-determining step. Idioma: Inglés DOI: 10.1002/anie.202117006 Año: 2022 Publicado en: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 61, 20 (2022), e2021170 [5 pp] ISSN: 1433-7851 Factor impacto JCR: 16.6 (2022) Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 13 / 178 = 0.073 (2022) - Q1 - T1 Factor impacto CITESCORE: 26.3 - Chemistry (Q1) - Chemical Engineering (Q1)