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Dimeric cinchona ammonium salts with benzophenone linkers: enantioselective phase transfer catalysts for the synthesis of α-amino acids
- Source :
- RSC advances. 8(4)
- Publication Year :
- 2017
-
Abstract
- Chiral phase transfer catalysts of dimeric cinchona ammonium salts linked with a benzophenone bridge showed high enantioselectivity in the α-alkylation of a glycinate ester under mild industry-applicable conditions: 0.5 mol% PTC and near equivalents of alkyl halide. A dual function of the dimeric quinuclidiniums was proposed for the high efficiency.
- Subjects :
- chemistry.chemical_classification
biology
010405 organic chemistry
Chemistry
General Chemical Engineering
Enantioselective synthesis
Cinchona
Halide
General Chemistry
010402 general chemistry
biology.organism_classification
01 natural sciences
0104 chemical sciences
Amino acid
Catalysis
chemistry.chemical_compound
Polymer chemistry
Benzophenone
Ammonium
Alkyl
Subjects
Details
- ISSN :
- 20462069
- Volume :
- 8
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- RSC advances
- Accession number :
- edsair.doi.dedup.....2170d7ccb7ad023aabac675d04bc6b61