HIGHLY DIASTEREOSELECTIVE SYNTHESIS OF THREO OR ERYTHRO AMINOALKYL EPOXIDES FROM ALPHA-AMINO-ACIDS

被引:105
|
作者
BARLUENGA, J [1 ]
BARAGANA, B [1 ]
CONCELLON, JM [1 ]
机构
[1] UNIV OVIEDO,CSIC,INST QUIM ORGANOMETAL ENRIQUE MOLES,E-33071 OVIEDO,SPAIN
来源
JOURNAL OF ORGANIC CHEMISTRY | 1995年 / 60卷 / 21期
关键词
D O I
10.1021/jo00126a019
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
alpha-Chloro-alpha'-(dibenzylamino) methylketones 3 are synthesized in enantiomerically pure form starting from alpha-amino acids. Reduction of amino ketones 3 and further epoxidation affords three aminoalkyl epoxides 6 with diastereoisomeric excess ranging between 94% and 98%. The synthesis of erythro amino epoxides 9 is also described by reaction of alpha-amino aldehydes 7 with in situ generated (halomethyl)lithium. Amino epoxides 9 were obtained with a diastereoisomeric excess ranging between 91% and 98%.
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页码:6696 / 6699
页数:4
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