New method for the synthesis of cyclopalladated compounds
A new method for the synthesis of cyclopalladated compounds based on a ligand-exchange reaction of the form 1/2(Pd(N-C)Cl/sub 2/ + N-C*-H in equilibrium 1/2(Pd(N-C*)Cl)/sub 2/ + N-C-H, where N-C-H and N-C*-H are organic ligands which form cyclopalladated complexes, has been proposed. The reaction takes place at 25-50/sup 0/C in binary mixtures of acetic acid (HOAc) with an organic solvent (benzene or chloroform). The reaction does not take place without HOAc. The cyclopalladated derivatives of N,N-dimethyl-benzylamine and dimethylaminomethylferrocene serve as the original complexes. Azobenzene, 8-methylquinoline, 2-benzylpyridine, and other ligands undergo the reaction, i.e., the reaction is accompanied by the activation of sp/sup 3/ and sp/sup 2/ C-H bonds and results in the formation of five- and six-membered palladium-containing rings. The synthetic possibilities of the reaction, as well as the limits of its application, have been demonstrated. A possible mechanism for the process has been discussed.
- Research Organization:
- M.V. Lomonosov Moscow State Univ., USSR
- OSTI ID:
- 6413723
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 11:11; ISSN SJCCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ACETIC ACID
ACTIVATION ENERGY
AMINES
AROMATICS
AZAARENES
AZINES
BENZENE
BINDING ENERGY
CARBOXYLIC ACIDS
CATALYTIC EFFECTS
CHEMICAL BONDS
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
COMPLEXES
COMPLEXOMETRY
COORDINATION VALENCES
DIENES
ELECTRON SPIN RESONANCE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FERROCENE
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFRARED SPECTRA
IRON COMPLEXES
LEPTONS
LIGANDS
MAGNETIC RESONANCE
MONOCARBOXYLIC ACIDS
NITRO COMPOUNDS
NMR SPECTRA
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
PALLADIUM COMPLEXES
POLYENES
PYRIDINES
QUINOLINES
RESONANCE
SOLUBILITY
SOLVENTS
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
VALENCE