Asymmetric synthesis of benzylic quaternary carbon center via an enzymatic reaction

被引:34
作者
Shiotani, S
Okada, H
Nakamata, K
Yamamoto, T
Sekino, F
机构
[1] Department of Chemistry, Faculty of Science, Toyama University, Toyama 930
关键词
D O I
10.3987/COM-96-7421
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
(R)-(+)-((R)-(+)-12) and (S)-(-)-1-formyl-1-methyl-7-methoxy-1,2,3,4-tetrahydronaphthalene ((S)-(-)-12) were synthesized based on enantioselective PLE hydrolysis of diethyl 2-(m-methoxyphenyl)-2-methylmalonate. From (R)-(+)-12, (+)-O-Methylaphanorphine (16) and (-)-aphanorphine were synthesized. (S)-(+)-1-(N-Acetyl-N-methylaminoethyl)-1-methyl-7-methoxytetralin (25) was synthesized from (S)-(-)-12. This transformation constitutes a formal synthesis of (-)-eptazocine.
引用
收藏
页码:1031 / 1047
页数:17
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