6533b831fe1ef96bd1299842

RESEARCH PRODUCT

Enantioselective Synthesis of α-Quaternary Amino Acids by Alkylation of Deprotonated α-Aminonitriles.

Murat KucukdisliIsabelle NetzTill Opatz

subject

chemistry.chemical_classificationAlkylationMolecular StructureChemistryOrganic ChemistryStrecker amino acid synthesisEnantioselective synthesisStereoisomerismAlkylationCatalysislaw.inventionAmino acidDioxanesDeprotonationlawNitrilesOrganic chemistryCrystallizationAmino AcidsProtonsEnantiomeric excess

description

A series of α-quaternary arylglycines were prepared in high optical purity (up to 98% ee) by α-alkylation of deprotonated α-aminonitriles derived by the Strecker reaction from (4S,5S)-5-amino-2,2-dimethyl-4-phenyl-1,3-dioxane. The procedure includes only chromatographic purification of the final products and is devoid of chromatography or crystallization operations on intermediates to raise the optical purity.

10.1021/acs.joc.5b00868https://pubmed.ncbi.nlm.nih.gov/26024300