RT Journal Article T1 Osmium-promoted σ‑bond activation reactions on nucleosides A1 Valencia Calvo, Marta A1 Durán Merinero, Alba A1 Lorenzo Aparicio, María Del Carmen A1 Gómez Gallego, María Del Mar A1 Sierra Rodríguez, Miguel Ángel A1 Eguillor, Beatriz A1 Esteruelas Rodrigo, Miguel Ángel A1 Oliván Escó, Montserrat A1 Oñate, Enrique AB OsH6(PiPr3)2 has been used to selectively activate C−H, O−H, and C−C sigma bonds in nucleobases and nucleosides, including derivatives of6-phenylpurine and 4-phenylpyrimidine, leading to cyclometalated mononuclear Os−trihydride complexes, in excellent yields and as single products.Additionally, OsH6(PiPr3)2 promotes the efficient dehydrogenative decarbonylation of primary alcohols in nucleosides having unprotected sugar moieties.The incorporation of OsH2Cl2(PiPr3)2 in the structure of cyclometalated Ir(III) and Rh(III) half-sandwich complexes derived from nucleosides allows the preparation of a class of heterobimetallic bioorganometallic complexes having at least one M−C bond. These methodologies could be used in thefuture as a way for the orthogonal functionalization of oligonucleotides PB ACS SN 0276-7333 YR 2020 FD 2020-01-15 LK https://hdl.handle.net/20.500.14352/110690 UL https://hdl.handle.net/20.500.14352/110690 LA eng NO Organometallics 2020, 39, 312−323 NO Ministerio de Ciencia e Innovación NO Fundación Ramón Areces NO Gobierno de Aragón DS Docta Complutense RD 8 abr 2025