Bis(cyclopentadienyl)dimethyltitanium

Petasis, Nicos A.

doi:10.1002/047084289x.rb126

Cited by 1 publication

(2 citation statements)

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“…Pentafulvene complexes of early transition metals display a broad range of reactive behavior . The reactivity of titanium derivatives I compared to at first sight relatively similar dialkyl metallocenes like the Petasis reagent ( II ) is significantly different. This can be rationalized by the nature of the M–C exo bond in I .…”

Section: Introductionmentioning

confidence: 99%

“…This restriction-free alkylidene moiety and the remaining pentafulvene ligand are further used to investigate their cooperative E–H bond activation reactions. By those reactions, we seek to further interconnect the topic of early transition metal pentafulvene complexes with the well-established and applied fields of early (to later) transition metal carbon and nitrogen multiple bonds. , …”

Section: Introductionmentioning

confidence: 99%

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Cooperative Reactions of Pentafulvene Niobium Complexes: Formation of Alkylidene, Imido, Hydrazido, and Niobaaziridine Complexes

et al. 2021

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The substitution of the chlorido ligand of bis(η 5 :η 1 -(di-p-tolyl)-pentafulvene)niobium chloride by reaction with (trimethylsilyl)methyllithium is followed by α-C−H bond activation. Because of the π-η 5 :σ-η 1 coordination mode, the exocyclic carbon atom of the pentafulvene ligand is strongly nucleophilic and therefore protonated, and the niobium alkylidene species (3) is isolated. The formed complex 3 shows cooperating reactions of the remaining pentafulvene and the alkylidene ligand in activating different E−H bonds. Under mild conditions, terminal imido complexes (4) and a hydrazido complex (5) are obtained by double N−H bond splitting. By the reaction of 3 with Nmethylaniline, a niobaaziridine ( 6) is formed via simultaneous N−H and C−H bond activation. By deuterium labeling, the N−H bond can be assigned to the pentafulvene moiety and the C−H bond to the alkylidene carbon center.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%