Transition metal allyls

Henc, Biserka; Jolly, P. W.; Salz, R.; Wilke, Günther; Benn, Reinhard; Hoffmann, E. G.; Mynott, Richard; Schroth, Gerhard; Seevogel, Klaus; Sekutowski, Janine C.; Krüger, Carl

doi:10.1016/s0022-328x(00)81072-4

Cited by 111 publications

(41 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2A) contains the wide signal (D z 150 Hz), centered at 52.5 ppm which is attributable to the 13 S nuclei of the terminal CH 2 groups of the allyl fragment. The observed spectral pattern can be explained within the concept of exchange processes that occur with the new complex 3 owing to the dynamic transition between h 3 and h 1 forms of the allyl fragment (pes-rearrangement) [15]. This assumption is supported by the NOESY data of NMR spectroscopy.…”

Section: Resultsmentioning

confidence: 58%

See 1 more Smart Citation

2D-NMR and EPR study of the activation of π-allyl group within the coordination sphere of the imine–amide complex of nickel(II) by the coordination of PMe

Kraikivskii

Saraev

Meusinger

et al. 2012

Journal of Organometallic Chemistry

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 58%

“…[15e17], such phenomena in NMR spectra take place only in the case of the rotation of the terminal CH 2 groups around the CeC bond at the moment when the allyl fragment is in the form of a h 1 -ligand s-bonded to nickel atom [15] (Scheme 4).…”

Section: Resultsmentioning

confidence: 99%

2D-NMR and EPR study of the activation of π-allyl group within the coordination sphere of the imine–amide complex of nickel(II) by the coordination of PMe

Kraikivskii

Saraev

Meusinger

et al. 2012

Journal of Organometallic Chemistry

View full text Add to dashboard Cite

“…Bis(allyl)palladium complexes can easily be generated by reaction of mono-allylpalladium complexes and allylmetal species, such as Grignard reagents (Scheme 3). [4,[24][25][26] Although, complex 1 and its alkyl-substituted analogues have been isolated and characterized by NMR spectroscopy and X-ray diffraction, [4,[24][25][26][27][28][29] these complexes are usually less stable than their mono-allylpalladium analogues. It was shown that bis(allyl)palladium complexes readily react with electrophiles.…”

Section: Bis(allyl)palladium Complexesmentioning

confidence: 99%

Palladium‐Catalyzed Electrophilic Allylation Reactions via Bis(allyl)palladium Complexes and Related Intermediates

Szabó

2004

Chemistry A European J

View full text Add to dashboard Cite

The synthetic scope of the allyl-palladium chemistry can be extended to involve electrophilic reagents. The greatest challenge in these reactions is the catalytic generation of an allyl-palladium intermediate incorporating a nucleophilic allyl moiety. A vast majority of the published reactions that involve palladium-catalyzed allylation of electrophiles proceed via bis(allyl)palladium intermediates. The eta(1)-moiety of the bis(allyl)palladium intermediates reacts with electrophiles, including aldehydes, imines, or Michael acceptors. Recently, catalytic electrophilic allylations via mono-allylpalladium complexes were also presented by employment of so-called "pincer complex" catalysts.

show abstract

“…Dieser Prozeß läßt sich z.B. an den Si- 13 C-NMR charakterisiert werden [5]. Im Sublimat befand sich neben 9 auch 1(E),5(E),9(E)-Cyclododecatrien, das aus Butadien in durch 9 katalysierter Reaktion entsteht.…”

unclassified

“…Im Sublimat befand sich neben 9 auch 1(E),5(E),9(E)-Cyclododecatrien, das aus Butadien in durch 9 katalysierter Reaktion entsteht. Für die Umsetzung zwischen 1 und Isopren nehmen wir die Bildung der 9 analogen Ni-C 12 -Kette an [5], Wir erklären die Bildung von 7 und 9 so, daß auch Butadien bzw. für 8 Isopren im ersten Reaktionsschritt Ethylen verdrängen.…”

unclassified

Ein-und zweikernige Phosphorinylnickel-Komplexe/Mono-and Binuclear Phosphorinylnickel Complexes

Lehmkuhl

Elsäßer

Benn

et al. 1985

Zeitschrift Für Naturforschung B

View full text Add to dashboard Cite

AbstractThe ethylene molecule in the binuclear complex [bis(2-4η-phosphorinyl)nickel](η2 -ethylene)-P,P′-nickel (1) is displaced by 1-alkenes in an equilibration reaction to give the corresponding (η2 -1-alkene)nickel complexes 2-5. The NMR spectra of the octene complex 3 and the propene complex 6 are temperature dependent because of valence isomerization in the phosphorinyl group and rotation of the olefin. The binuclear structure is not maintained upon displacement of the ethylene by butadiene or isoprene. One nickel atom is displaced as the dodecatrienediylnickel complex 9 and the remaining bis(phosphorinyl)nickel fragment B reacts with insertion of the diene into one allyl-Ni bond to give 7 resp. 8. The molecular structure of 7 was determined by X-ray crystallography.

show abstract

Transition metal allyls

Cited by 111 publications

References 33 publications

2D-NMR and EPR study of the activation of π-allyl group within the coordination sphere of the imine–amide complex of nickel(II) by the coordination of PMe

2D-NMR and EPR study of the activation of π-allyl group within the coordination sphere of the imine–amide complex of nickel(II) by the coordination of PMe

Palladium‐Catalyzed Electrophilic Allylation Reactions via Bis(allyl)palladium Complexes and Related Intermediates

Ein-und zweikernige Phosphorinylnickel-Komplexe/Mono-and Binuclear Phosphorinylnickel Complexes

Contact Info

Product

Resources

About