Ir/PTC cooperatively catalyzed asymmetric umpolung allylation of α-imino ester enabled synthesis of α-quaternary amino acid derivatives bearing two vicinal stereocenters

2017 ◽  
Vol 53 (12) ◽  
pp. 1985-1988 ◽  
Author(s):  
Yong-Liang Su ◽  
Yu-Hui Li ◽  
Yu-Gen Chen ◽  
Zhi-Yong Han

A novel Ir/PTC (phase-transfer catalyst) cooperatively catalyzed asymmetric umpolung allylation of simple α-imino esters is developed and it provides facile access to α-quaternary amino acid derivatives bearing two vicinal stereocenters.

2020 ◽  
Vol 56 (4) ◽  
pp. 579-582 ◽  
Author(s):  
Andreas Eitzinger ◽  
Michael Winter ◽  
Johannes Schörgenhumer ◽  
Mario Waser

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


2016 ◽  
Vol 22 (43) ◽  
pp. 15261-15264 ◽  
Author(s):  
Timothée Cadart ◽  
Clément Berthonneau ◽  
Vincent Levacher ◽  
Stéphane Perrio ◽  
Jean-François Brière

ChemInform ◽  
2010 ◽  
Vol 33 (24) ◽  
pp. no-no
Author(s):  
Dana Ferraris ◽  
Brandon Young ◽  
Christopher Cox ◽  
Travis Dudding ◽  
William J. Drury III ◽  
...  

2016 ◽  
Vol 81 (6) ◽  
pp. 2494-2505 ◽  
Author(s):  
Rosaria Schettini ◽  
Francesco De Riccardis ◽  
Giorgio Della Sala ◽  
Irene Izzo

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