Direct Organocatalytic Enantioselective Mannich Reactions of Ketimines: An Approach to Optically Active Quaternaryα-Amino Acid Derivatives

2004 ◽  
Vol 116 (34) ◽  
pp. 4576-4578 ◽  
Author(s):  
Wei Zhuang ◽  
Steen Saaby ◽  
Karl Anker Jørgensen
Keyword(s):  
Amino Acid ◽  
Optically Active ◽  
Amino Acid Derivatives ◽  
Mannich Reactions

Synthesis of Optically Active 2,3-Disubstituted Indoline ­Derivatives through Cycloaddition Reactions between Benzynes and α,β-Unsaturated γ-Aminobutyronitriles

Synlett ◽  
2018 ◽  
Vol 29 (04) ◽  
pp. 530-536 ◽  
Author(s):  
Takashi Ikawa ◽  
Shuji Akai ◽  
Yuta Sumii ◽  
Shigeaki Masuda ◽  
Ding Wang ◽  
...  
Keyword(s):  
Amino Acid ◽  
Cycloaddition Reaction ◽  
Optically Active ◽  
Amino Acid Derivatives ◽  
Cycloaddition Reactions

We report a method for synthesizing optically active 2,3-disubstituted indolines by the cycloaddition reaction of benzynes with various 4-[(4-toluenesulfonyl)amino]-(E)-but-2-enenitriles, which are readily prepared from the corresponding l-amino acid derivatives.

Catalytic Asymmetric Mono-Fluorination of α-Keto Esters: Synthesis of Optically Active β-Fluoro-α-Hydroxy and β-Fluoro-α-Amino Acid Derivatives

2012 ◽  
Vol 124 (19) ◽  
pp. 4659-4663 ◽  
Author(s):  
Shoko Suzuki ◽  
Yuki Kitamura ◽  
Sylvain Lectard ◽  
Yoshitaka Hamashima ◽  
Mikiko Sodeoka
Keyword(s):  
Amino Acid ◽  
Optically Active ◽  
Amino Acid Derivatives ◽  
Keto Esters ◽  
Catalytic Asymmetric
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