Selective Lithiation and Phosphane-Functionalization of [(η-CH)Ti(η-CH)] (Troticene) and Its Use for the Preparation of Early-Late Heterobimetallic Complexes.
The cycloheptatrienyl-cyclopentadienyl sandwich complex [η-CH)Ti(η-CH)) (troticene) can be dilithiated (once at each ring) or selectively monolithiated, either at the seven- or five-membered ring, depending on the reaction conditions. Treatment of the resulting lithiotroticenes with CIPPh2 afforded...
| Publicado en: | Journal of the American Chemical Society Vol. 131; no. 46; pp. 17014 - 17024 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
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American Chemical Society
11/25/2009
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=46705256&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 46705256 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 11/25/2009 vid: 131 iid: 46 pid: 997 pub: American Chemical Society artinfo: ui: 46705256 10.1021/ja9080056 ppf: 17014 ppct: 10 formats: tig: atl: Selective Lithiation and Phosphane-Functionalization of [(η-CH)Ti(η-CH)] (Troticene) and Its Use for the Preparation of Early-Late Heterobimetallic Complexes. aug: au: Mohapatra, Swagat K. Büschel, Susanne Daniliuc, Constantin Jones, Peter G. Tamm, Matthias affil: Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany su: X-ray diffraction Ferrocene Chemical reactions Metal complexes Molecular structure sug: subj: X-ray diffraction Ferrocene Chemical reactions Metal complexes Molecular structure ab: The cycloheptatrienyl-cyclopentadienyl sandwich complex [η-CH)Ti(η-CH)) (troticene) can be dilithiated (once at each ring) or selectively monolithiated, either at the seven- or five-membered ring, depending on the reaction conditions. Treatment of the resulting lithiotroticenes with CIPPh2 afforded the corresponding troticenyl-phosphanes [(η-CHPPh)Ti(η-CHPPh)] (1), [(η-CHPPh)Ti(η-CH)] (2), or [(η-CH)Ti(η-CHPPh)] (3). The use of nBuLi/N,W,W,W',N'-pentamethyldiethylenetriamine (pmdta) allowed us to isolate the lithium complexes [(η-CHLi)Ti(η-CHLi)]·pmdta (4) and [(η-CH)Ti(η-CHLi)]-pmdta (5), which were structurally characterized by X-ray diffraction analyses. Reaction of the monophosphane 3 with Mo(CO) and [(tht)AuCI] (tht = tetrahydrothiophene) afforded the heterobimetallic complexes [(3)Mo(CO)] (6) and [(3)AuCI] (7) and also the trimetallic species [(3)AuCl] (8). The reaction of trans-[PtCI(SEt)] with the diphosphane 1 led to the formation of cis-[(1)PtCI] (9), whereas the complexes trans-[(2)PtCI] (10) and trans-[(3)PtCI] (11) were isolated by reaction of two equivalents of the monophosphanes 2 and 3 with trans-[PtCI(SEt)]. The X-ray crystal structures of 6-11 are also reported. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2009 holdings: @attributes: islocal: N |
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