Kinetic resolution of heterocyclic amines by reaction with optically active acid chlorides. The effect of reaction conditions on the diastereoselectivity of acylation of (±)-3-methyl-2,3-dihydro-4H-1,4-benzoxazine

被引:0
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作者
V. P. Krasnov
G. L. Levit
M. A. Korolyova
I. M. Bukrina
L. Sh. Sadretdinova
I. N. Andreeva
V. N. Charushin
O. N. Chupakhin
机构
[1] Ural Branch of the Russian Academy of Sciences,I. Ya. Postovsky Institute of Organic Synthesis
来源
Russian Chemical Bulletin | 2004年 / 53卷
关键词
kinetic resolution of racemates; 3-methyl-2,3-dihydro-4; -1,4-benzoxazine; acid chlorides; (; )-naproxen; -tosyl-(; )-proline; acylation;
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摘要
The influence of the reaction conditions (solvent, base) on the diastereoselectivity of acylation of (±)-3-methyl-2,3-dihydro-4H-1,4-benzoxazine with (S)-naproxen and N-tosyl-(S)-proline chlorides was studied. The highest diastereoselectivity was observed for the reaction carried out in benzene in the presence of aliphatic tertiary amines.
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页码:1253 / 1256
页数:3
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