Synthesis and asymmetric reactivity of enantiomerically pure cyclopentadienylmetal complexes derived from the chiral pool
Journal Article
·
· Organometallics; (United States)
Starting from pulegone, camphor, and tartrate, three chiral cyclopentadienes were prepared efficiently. Metalation with Co/sub 2/(CO)/sub 8/ and TiCl/sub 3/ resulted in new chiral and enantiomerically pure substituted cyclopentadienyldicarbonylcobalt and -titanocene complexes. The latter were used in the quantitative catalytic asymmetric hydrogenation of 2-phenyl-1-butene in up to 34% optical yield. The former allowed the first asymmetric (2 + 2 + 2) cycloadditions promoted by chiral cyclopentadienylcobalt complexes to be observed.
- Research Organization:
- Univ. of California, Berkeley (USA)
- OSTI ID:
- 7256341
- Journal Information:
- Organometallics; (United States), Vol. 7:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT COMPOUNDS
CHEMICAL PREPARATION
STEREOCHEMISTRY
CYCLOPENTADIENE
ORGANOMETALLIC COMPOUNDS
TITANIUM CHLORIDES
CARBONYLS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
TITANIUM COMPOUNDS
ALKENES
CHLORIDES
CHLORINE COMPOUNDS
CYCLOALKENES
DATA
DIENES
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYENES
REACTION KINETICS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT COMPOUNDS
CHEMICAL PREPARATION
STEREOCHEMISTRY
CYCLOPENTADIENE
ORGANOMETALLIC COMPOUNDS
TITANIUM CHLORIDES
CARBONYLS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
TITANIUM COMPOUNDS
ALKENES
CHLORIDES
CHLORINE COMPOUNDS
CYCLOALKENES
DATA
DIENES
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYENES
REACTION KINETICS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties