Highly enantioselective synthesis of cyc
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E.J Corey; Mark C Noe; Feng Xu
📂
Article
📅
1998
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Elsevier Science
🌐
French
⚖ 247 KB
The chiral quaternary ammonium salt 1 serves as phase transfer catalyst for the enantioselective conversion of the glycine derivative 2 to a variety of cyclic and acyclic chiral oramino acids with enantioselectivities as high as 200:1 in alkylation and Michael addition reactions.