Arene complexes of transition metals in reactions with nucleophilic reagents. XVI. Kinetics and mechanism of the reaction of the. pi. -arene complexes of chromium and iron and piperidine
Journal Article
·
· J. Org. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6089594
The kinetics of the reaction of ..pi..-arene complexes of the (/eta/-XC/sub 6/H/sub 4/Cl)ML type (where ML = Cr(CO)/sub 3/ (X = p-Cl), Cr/sup +/(/eta/-C/sub 6/H/sub 5/Cl) (X = H), Fe/sup +/(/eta/-C/sub 5/H/sub 5/) (X = H)) with piperidine in acetone suggest that in the second and third cases the controlling stage is the transformation of the intermediate sigma complex into the reaction products almost entirely by a path with catalysis by the reagent while in the first case it is the formation of the intermediate. The marked increase in the catalytic effect of piperidine in the transition from neutral to cationic ..pi..-arene complexes show that the charge of the metal-complex fragment, coordinated with the arene, has a significant effect on the ratio of the rates of transformation of the intermediate sigma complex into the initial compounds and the final reaction products.
- Research Organization:
- Novosibrisk Institute of Organic Chemistry (USSR)
- OSTI ID:
- 6089594
- Journal Information:
- J. Org. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Org. Chem. USSR (Engl. Transl.); (United States) Vol. 23:12; ISSN JOCYA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACETONE
AMINES
AROMATICS
AZINES
CARBONYLS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHLORINATED AROMATIC HYDROCARBONS
CHROMIUM COMPLEXES
COMPLEXES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
INFRARED SPECTRA
IRON COMPLEXES
KETONES
KINETICS
NITRO COMPOUNDS
NMR SPECTRA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PIPERIDINES
PYRIDINES
QUANTITY RATIO
REACTION INTERMEDIATES
REACTION KINETICS
SPECTRA
STEREOCHEMISTRY
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPLEXES
400201* -- Chemical & Physicochemical Properties
ACETONE
AMINES
AROMATICS
AZINES
CARBONYLS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHLORINATED AROMATIC HYDROCARBONS
CHROMIUM COMPLEXES
COMPLEXES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
INFRARED SPECTRA
IRON COMPLEXES
KETONES
KINETICS
NITRO COMPOUNDS
NMR SPECTRA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PIPERIDINES
PYRIDINES
QUANTITY RATIO
REACTION INTERMEDIATES
REACTION KINETICS
SPECTRA
STEREOCHEMISTRY
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPLEXES