Regioselective bromination of quinopimaric acid derivatives

被引:0
|
作者
I. E. Smirnova
O. B. Kazakova
E. V. Tret’yakova
L. V. Spirikhin
I. V. Glukhov
Yu. V. Nelyubina
机构
[1] Russian Academy of Sciences,Institute of Organic Chemistry, Ufa Research Center
[2] Russian Academy of Sciences,Nesmeyanov Institute of Organometallic Compounds
来源
关键词
Acid Methyl Ester; Abietic Acid; Dehydroabietic Acid; Methyl Carbon Atom; Molecular Bromine;
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摘要
Regioselective bromination of 14β-hydroxydihydroquinopimaric acid methyl ester in acetic acid and methanol gave the corresponding 16S-bromo-, 19R-bromo-, and 16S,19R-dibromo-14β,20-epoxy derivatives whose structure was determined by X-ray analysis and NMR spectroscopy. The reactions of 16S-bromo ketones with thiourea afforded 2,1,3-thiadiazoles fused to diterpene fragment.
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页码:1135 / 1139
页数:4
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