Convenient asymmetric synthesis off β-substituted α,α-difluoro-β-amino acids via Reformatsky reaction between Davis' N-sulfinylimines and ethyl bromodifluoroacetate

被引:84
作者
Sorochinsky, A [1 ]
Voloshin, N
Markovsky, A
Belik, M
Yasuda, N
Uekusa, H
Ono, T
Berbasov, DO
Soloshonok, VA
机构
[1] Ukrainian Acad Sci, Inst Bioorgan Chem & Petrochem, UA-253660 Kiev, Ukraine
[2] Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528551, Japan
[3] Natl Inst Adv Ind Sci & Technol, Mol Struct Design Grp, Inst Struct & Engn Mat, Moriyama Ku, Nagoya, Aichi 4638560, Japan
[4] Univ Oklahoma, Dept Chem & Biochem, Norman, OK 73019 USA
关键词
D O I
10.1021/jo030082k
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The enantiopure Davis' N-sulfinylimines were found to be efficient as chiral imine equivalents in the high-temperature Reformatsky-type additions with BrZnCF2COOEt affording an efficient approach to the enantiomerically pure alpha,alpha-difluoro-beta-amino acids. High chemical and stereochemical yields (drs > 9:1, and as high as 99:1) render this method immediately useful for preparing the target amino acids.
引用
收藏
页码:7448 / 7454
页数:7
相关论文
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