2024-03-28T20:55:17Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1143462021-06-21T11:56:24Zcom_10261_38com_10261_5col_10261_291
2015-04-28T10:27:19Z
urn:hdl:10261/114346
A Diels–Alder Reaction Triggered by a [4 + 3] Metallacycloaddition
Vivancos, Ángela
Vattier, Florencia
López-Serrano, Joaquín
Paneque, Margarita
Poveda, Manuel L.
Álvarez, Eleuterio
The TpMe2Ir(III) complex 1-OH2 (TpMe2 = hydrotris(3,5-dimethylpyrazolyl)borate), which contains a labile molecule of water and an iridium-bonded alkenyl moiety (−C(R)═C(R)–(R=CO2Me)) as part of a benzo-annulated five-membered iridacycle, reacts readily with the conjugated dienes butadiene and 2,3-dimethylbutadiene to afford the corresponding Diels–Alder products. Experimental and DFT studies are in accordance with an initial [4 + 3] cyclometalation reaction between the diene and the five-coordinated 16-electron organometallic fragment 1 (generated from 1-OH2 by facile water dissociation). The reaction can be extended to a related TpIr(III) complex (Tp = hydrotris(pyrazolyl)borate) that also features a labile ligand (i.e., 2-THF).
2015-04-28T10:27:19Z
2015-04-28T10:27:19Z
2015
artículo
Journal of the American Chemical Society, 137(12): 4074-4077 (2015)
http://hdl.handle.net/10261/114346
10.1021/jacs.5b01532
eng
Postprint
http://dx.doi.org/10.1021/jacs.5b01532
Sí
openAccess
American Chemical Society