Ultrasound‐Promoted Enantioselective Decarboxylative Protonation of α‐Aminomalonate Hemiesters by Chiral Squaramides: A Practical Approach to Both Enantiomers of α‐Amino Esters
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DOI: 10.1002/ejoc.201700786
Abstract: Ultrasound promoted enantioselelctive decarboxylative protonation reaction of α-aminomalonate hemiesters 1 in the presence of chiral cinchona-derived squaramide Bronsted bases under mild conditions afforded both the (S) and (R) enantiomers of α-amino acid derivatives 2 in… read more here.
Keywords: enantiomers amino; aminomalonate hemiesters; ultrasound promoted; decarboxylative protonation ... See more keywords