Synthesis of Chiral α-Amino Acid Derivatives by Asymmetric Addition of α-Imino Ester

2018 ◽  
Vol 38 (10) ◽  
pp. 2553
Author(s):  
Jili Bi ◽  
Ransong Ma ◽  
Jinhui Yang
Keyword(s):  
Amino Acid ◽  
Amino Acid Derivatives ◽  
Asymmetric Addition

scholarly journals Rhodium-catalyzed asymmetric addition of arylboronic acids to cyclic N-sulfonyl ketimines towards the synthesis of α,α-diaryl-α-amino acid derivatives

2015 ◽  
Vol 13 (17) ◽  
pp. 4918-4924 ◽  
Author(s):  
Ryosuke Takechi ◽  
Takahiro Nishimura
Keyword(s):  
Amino Acid ◽  
Ester Group ◽  
Amino Acid Derivatives ◽  
Asymmetric Addition ◽  
Arylboronic Acids ◽  
High Yields ◽  
Diene Complex

Rhodium/chiral diene complex-catalyzed asymmetric addition of arylboronic acids to cyclic ketimines having an ester group proceeded to give the corresponding α-amino acid derivatives in high yields with high enantioselectivity.

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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