![]() Highly enantioselective synthesis of cyclic and functionalized α-amino acids by means of a chiral phase transfer catalyst. A rational approach to catalytic enantioselective enolate alkylation using a structurally rigidified and defined chiral quaternary ammonium salt under phase transfer conditions. ![]() Enantioselective synthesis of bis-α-amino acid esters via asymmetric phase-transfer catalysis. Asymmetric phase-transfer mediated epoxidation of α,β-unsaturated ketones using catalysts derived from Cinchona alkaloids. A new class of asymmetric phase-transfer catalysts derived from cinchona alkaloids - application in the enantioselective synthesis of α-amino acids. Industrial applications of phase transfer catalysis (PTC): past, present and future. Heterogeneous reactions involving anion transfer by quaternary ammonium and phosphonium salts.
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