Álvarez Pérez, AndreaGonzález Rodríguez, CarlosGarcía Yebra, CristinaVarela Carrete, Jesús ÁngelOñate Rodríguez, EnriqueEsteruelas Rodrigo, Miguel ÁngelSaá Rodríguez, Carlos2020-10-052020-10-052015Álvarez-Pérez, A., González-Rodríguez, C., García-Yebra, C., Varela, J. A., Oñate, E., Esteruelas, M. A., Saá, C. (2015). Catalytic Cyclization of o‐Alkynyl Phenethylamines via Osmacyclopropene Intermediates: Direct Access to Dopaminergic 3‐Benzazepines. Angew. Chem. Int. Ed., 54, 45, 13357-133611433-7851http://hdl.handle.net/10347/23347NOTICE: This is the peer reviewed version of the following article: Álvarez-Pérez, A., González-Rodríguez, C., García-Yebra, C., Varela, J. A., Oñate, E., Esteruelas, M. A., Saá, C. (2015). Catalytic Cyclization of o‐Alkynyl Phenethylamines via Osmacyclopropene Intermediates: Direct Access to Dopaminergic 3‐Benzazepines. Angew. Chem. Int. Ed., 54, 45, 13357-13361. [doi: 10.1002/anie.201505782]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archivingA novel osmium‐catalyzed cyclization of o‐alkynyl phenethylamines to give 3‐benzazepines is reported. The procedure allows the straightforward preparation of a broad range of dopaminergic 3‐benzazepine derivatives. Mechanistic investigations revealed that the process takes place via osmacyclopropene intermediates, which were isolated and characterized by X‐ray crystallography.eng© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archivingBenzazepinesCyclizationMetallacyclopropenesOsmium catalystsPhenethylaminesjournal article10.1002/anie.2015057821521-3773open access