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Title

Cycloruthenated complexes from iminophosphoranes: Synthesis, structure, and reactivity with internal alkynes

AuthorsAguilar, David; Bielsa, Raquel; Soler, Tatiana; Urriolabeitia, Esteban P.
Issue Date2011
PublisherAmerican Chemical Society
CitationOrganometallics 30(3): 642-648 (2011)
AbstractCycloruthenated complexes [(η6-arene)Ru(C6H 4-2-PPh2=NR)Cl] (arene = benzene, p-cymene; R = Ph, H) containing orthometalated iminophosphoranes have been obtained by transmetalation reactions from Hg(C6H4-2-PPh 2=NR)2 derivatives to [(η6-arene)Ru(μ- Cl)Cl]2. These complexes react cleanly with internal alkynes R 1C=CR2 (R1, R2 = Ph, Et, CO 2Me), KPF6, and CuBr2, yielding the 1,1,2-triphenyl-3,4-di(alkyl/aryl)-2,1λ5-benzazaphosphinin-2- ium heterocycles [C6H4-PPh2-NPh-C(R 1)=C(R2)-3,4]+ as PF6 salts. In all studied cases only the monoinsertion products have been observed. In the case of the asymmetric alkyne MeC=CPh the insertion is regioselective, and the [C 6H4-PPh2-NPh-C(Me)=C(Ph)-3,4]PF6 salt is obtained. © 2011 American Chemical Society.
URIhttp://hdl.handle.net/10261/52561
DOI10.1021/om100997x
Identifiersdoi: 10.1021/om100997x
issn: 0276-7333
e-issn: 1520-6041
Appears in Collections:(ICMA) Artículos
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