ChemInform Abstract: Asymmetric Addition of a Nitrogen Nucleophile to an Enoate in the Presence of a Chiral Phase-Transfer Catalyst: A Novel Approach Toward Enantiomerically Enriched Protected β-Amino Acids.

ChemInform ◽  
2012 ◽  
Vol 43 (28) ◽  
pp. no-no
Author(s):  
Markus Weiss ◽  
Sonja Borchert ◽  
Emmanuelle Remond ◽  
Sylvain Juge ◽  
Harald Groeger
Keyword(s):  
Amino Acids ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Chiral Phase ◽  
Asymmetric Addition ◽  
Novel Approach ◽  
Nitrogen Nucleophile

scholarly journals Quaternary β2,2-amino acid derivatives by asymmetric addition of isoxazolidin-5-ones to para-quinone methides

2020 ◽  
Vol 56 (4) ◽  
pp. 579-582 ◽  
Author(s):  
Andreas Eitzinger ◽  
Michael Winter ◽  
Johannes Schörgenhumer ◽  
Mario Waser
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Amino Acid Derivatives ◽  
Quinone Methides ◽  
Chiral Phase ◽  
Asymmetric Addition

Novel densely functionalized β2,2-amino acids were obtained in almost enantiopure form using down to 20 ppm of a chiral phase-transfer catalyst.

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