Photochemical C-C1 bond activation of trichloroarenes by the rhenium complex (n5-C5ME5)Re(CO)3. X-ray structure of trans-(n5-C5Me5)Re(CO)2(2-methoxy-4,5-dichlorophenyl)cloride.

Photochemical reaction of (eta(5)-C5Me5)Re(CO)(3), with 2,4,5-trichloroanisole and 3,4,5-trichlorotrifluoromethylbenzene yields (eta(5)- C5Me5)Re(CO)(2)(C6H2Cl2(MeO))Cl (1) and (eta(5)-C5Me5)Re(CO)(2)(C6H2Cl2(CF3))Cl, (2) formed by insertion of the fragment (eta(5)- C5Me5)Re(CO)(2) into the C-Cl bon...

Descripción completa

Detalles Bibliográficos
Autores: Aballay, A, Godoy, F, Buono-Core, G.E, Klahn, H A, Oelckers, B., Garland, M T, Muñoz, J C
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2003
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/240433
Acceso en línea:https://hdl.handle.net/10533/240433
Access Level:acceso abierto
Descripción
Sumario:Photochemical reaction of (eta(5)-C5Me5)Re(CO)(3), with 2,4,5-trichloroanisole and 3,4,5-trichlorotrifluoromethylbenzene yields (eta(5)- C5Me5)Re(CO)(2)(C6H2Cl2(MeO))Cl (1) and (eta(5)-C5Me5)Re(CO)(2)(C6H2Cl2(CF3))Cl, (2) formed by insertion of the fragment (eta(5)- C5Me5)Re(CO)(2) into the C-Cl bond of the chloroarenes. The C-Cl bond activation of trichloroanisole occurs at the chlorine ortho respect to the methoxy group as revealed by the X-ray structure of 1. In the case of the reaction with C6H2Cl3(CF3), H-1-NMR spectroscopy indicates that only the C-Cl bond meta respect to CF3 group is cleaved. Complex 1 was isolated as the trans isomer while 2 was obtained as an isomeric mixture (trans-2 and cis-2). The stereochemistry of these complexes has been assigned by IR and C-13-NMR spectroscopies and supported by X-ray crystallography for 1.

Similares en LA Referencia