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Synthesis and X-ray structure of an unexpected bidentate allene-aminocarbene complex of tungsten |
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| Authors: | José G López-Cortés Armando Samano-Galindo Alfredo Toscano Andrée Parlier |
| Institution: | a Instituto de Química UNAM, Circuito Exterior, Ciudad Universitaria, Coyoacán C.P. 04510, México, D.F., Mexico b Departamento de Química Orgánica, Facultad de Química, UNAM, Mexico c Laboratoire de Synthese Organique, UMR 761 Université P.M. Curie Paris, France |
| Abstract: | This contribution describes the results obtained from the alkylation reaction upon base-induced of propargyl bromide at nitrogen of Ferrocenyl-N-pentylaminocarbene of tungsten, chromium and molybdenum. This led to unexpected highly strained Fischer-type carbene complexes (5a-c) containing a bidentate allene-aminocarbene ligand. This is the first report of the η2-allene Fischer carbene complexes. The structure of 5a was confirmed by an X-ray diffraction analysis. |
| Keywords: | Carbene complexes Ferrocene Heterobimetallic complexes Allenes |
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