Catalytic asymmetric Michael reactions promoted by a lithium-free lanthanum-BINOL complex
- Univ. of Tokyo (Japan)
In this communication, we report about a new lithium-free BINOL-lanthanum complex, which is quite effective in catalytic asymmetric Michael reaction. We have succeeded in developing effective asymmetric base catalysts, in particular, asymmetric ester enolate catalysts for asymmetric Michael reactions. Two asymmetric lanthanum complexes are now available, namely, BINOL-lanthanum-lithium complex, which is quite effective in catalytic asymmetric nitrosaldol reactions, and a new lithium-free BINOL-lanthanum ester enolate complex, that is very effective in catalytic asymmetric Michael reactions. The two complexes complement each other in their ability to catalyze asymmetric nitroaldol and asymmetric Michael reactions. 14 refs., 1 fig., 2 tabs.
- OSTI ID:
- 7114128
- Journal Information:
- Journal of the American Chemical Society; (United States), Vol. 116:4; ISSN 0002-7863
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ADDUCTS
SYNTHESIS
LANTHANUM COMPLEXES
MOLECULAR STRUCTURE
CATALYSTS
CHEMICAL REACTION KINETICS
COMPILED DATA
ORGANOMETALLIC COMPOUNDS
SYMMETRY
COMPLEXES
DATA
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
RARE EARTH COMPLEXES
REACTION KINETICS
400201* - Chemical & Physicochemical Properties
360602 - Other Materials- Structure & Phase Studies