Use of palladium-catalyzed coupling reactions in the synthesis of heterobimetallic complexes. Preparation of bis(cyclopentadienyl)acetylene heterodinuclear complexes
- Colorado State Univ., Fort Collins (USA)
The palladium-catalyzed coupling reactions of {eta}{sup 5}-iodocyclopentadienyl complexes of Fe, W, Mn, and Re with Bu{sub 3}SnC{triple bond}CH yield the corresponding {eta}{sup 5}-ethynylcyclopentadienyl derivatives ({eta}{sup 5}-HC{triple bond}CC{sub 5}H{sub 4})ML{sub n} (M = Fe, W, Mn, Re). Upon reaction with Et{sub 2}NSnR{sub 3} (R = Me, Bu), the acetylenic proton is replaced with a trialkyltin group, forming the {eta}{sup 5}((trialkylstannyl)ethynyl)cyclopentadienyl derivatives ({eta}{sup 5}-R{sub 3}SnC{triple bond}CC{sub 5}H{sub 4})ML{sub n}. A second palladium-catalyzed coupling reaction between these trialkyltin derivatives and ({eta}{sup 5}-iodocyclopentadienyl)metal complexes affords the heterobimetallic complexes L{sub n}M({eta}{sup 5}-C{sub 5}H{sub 4})C{triple bond}C({eta}{sup 5}-C{sub 5}H{sub 4})M{prime}L{sub m} (M and M{prime} = Fe, W, Mo, Mn, Re). The crystal structure of Ph{sub 3}P(CO){sub 2}Mn({eta}{sup 5}-C{sub 5}H{sub 4})C{triple bond}C({eta}{sup 5}-C{sub 5}H{sub 4})W(CO){sub 3}CH{sub 3} confirmed the general structure of these heterobimetallic complexes.
- OSTI ID:
- 6380290
- Journal Information:
- Organometallics; (USA), Journal Name: Organometallics; (USA) Vol. 9:3; ISSN 0276-7333; ISSN ORGND
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKENES
CATALYSIS
CRYSTAL STRUCTURE
CYCLOALKENES
CYCLOPENTADIENE
DATA
DATA ANALYSIS
DIENES
ELEMENTS
EXPERIMENTAL DATA
HOMOGENEOUS CATALYSIS
HYDROCARBONS
INFORMATION
IRON
MANGANESE
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PALLADIUM
PLATINUM METALS
POLYENES
RHENIUM
SYNTHESIS
TRANSITION ELEMENTS
TUNGSTEN
400201* -- Chemical & Physicochemical Properties
ALKENES
CATALYSIS
CRYSTAL STRUCTURE
CYCLOALKENES
CYCLOPENTADIENE
DATA
DATA ANALYSIS
DIENES
ELEMENTS
EXPERIMENTAL DATA
HOMOGENEOUS CATALYSIS
HYDROCARBONS
INFORMATION
IRON
MANGANESE
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PALLADIUM
PLATINUM METALS
POLYENES
RHENIUM
SYNTHESIS
TRANSITION ELEMENTS
TUNGSTEN