Limits...
Methylpalladium complexes with pyrimidine-functionalized N-heterocyclic carbene ligands

View Article: PubMed Central - HTML - PubMed

ABSTRACT

A series of methylpalladium(II) complexes with pyrimidine-NHC ligands carrying different aryl- and alkyl substituents R ([((pym)^(NHC-R))PdII(CH3)X] with X = Cl, CF3COO, CH3) has been prepared by transmetalation reactions from the corresponding silver complexes and chloro(methyl)(cyclooctadiene)palladium(II). The dimethyl(1-(2-pyrimidyl)-3-(2,6-diisopropylphenyl)imidazolin-2-ylidene)palladium(II) complex was synthesized via the free carbene route. All complexes were fully characterized by standard methods and in three cases also by a solid state structure.

No MeSH data available.


Synthesis of complex 13.
© Copyright Policy - Beilstein
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC4979653&req=5

C2: Synthesis of complex 13.

Mentions: We recently reported that the dihalogenato complexes are active catalysts of the methane CH activation in trifluoroacetic acid [34]. Under the reaction conditions it seems likely, that an exchange of the chloro against a trifluoroacetato ligands occurs [29], which is present in the solution in large excess. This potential intermediate of the catalytic cycle, the [(pym)^(NHC-R)PdII(CH3)(CF3COO)]-complex 13 (with R = 2,6-diisopropylphenyl), could be synthesized by the reaction of complex 11 with silver trifluoroacetate (Scheme 2). We could also confirm the formation of the desired product by a solid state structure (Fig. 4).


Methylpalladium complexes with pyrimidine-functionalized N-heterocyclic carbene ligands
Synthesis of complex 13.
© Copyright Policy - Beilstein
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4979653&req=5

C2: Synthesis of complex 13.
Mentions: We recently reported that the dihalogenato complexes are active catalysts of the methane CH activation in trifluoroacetic acid [34]. Under the reaction conditions it seems likely, that an exchange of the chloro against a trifluoroacetato ligands occurs [29], which is present in the solution in large excess. This potential intermediate of the catalytic cycle, the [(pym)^(NHC-R)PdII(CH3)(CF3COO)]-complex 13 (with R = 2,6-diisopropylphenyl), could be synthesized by the reaction of complex 11 with silver trifluoroacetate (Scheme 2). We could also confirm the formation of the desired product by a solid state structure (Fig. 4).

View Article: PubMed Central - HTML - PubMed

ABSTRACT

A series of methylpalladium(II) complexes with pyrimidine-NHC ligands carrying different aryl- and alkyl substituents R ([((pym)^(NHC-R))PdII(CH3)X] with X = Cl, CF3COO, CH3) has been prepared by transmetalation reactions from the corresponding silver complexes and chloro(methyl)(cyclooctadiene)palladium(II). The dimethyl(1-(2-pyrimidyl)-3-(2,6-diisopropylphenyl)imidazolin-2-ylidene)palladium(II) complex was synthesized via the free carbene route. All complexes were fully characterized by standard methods and in three cases also by a solid state structure.

No MeSH data available.