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英文名称 Humulene epoxide II 储存条件 2-8℃ 可售卖地 全国 型号 标准品 货号 B50933 B50933 Humulene epoxide II Fifan 分析标准品,TLC≥97% 英文名: Humulene epoxide II 别名: 3,9,13,19-tetraoxo-1,11-dithia-4,8,14,18-tetraazaeicosane; 1,11-Dithia-4,8,14,18-tetraazacycloeicosa...
ChemInform Abstract: Transannular Cyclization Reaction of Humulene 2,3-Epoxide. Formation of a Compound Shaping TC Conformer.doi:10.1002/chin.199611231terpenesring closure reactionsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 ...
The first step is a non-enantioselective epoxidation of the 1,2-double bond, whereas the subsequent hydroxylations were performed preferably at the 1R ,2R -epoxide. To proof these results the anti-1,2;8,9-diepoxide was synthesized and used as substrate. While the 1R ,2R ,8S,9S-...
Humulene diepoxide A, a flavoring compound found in hops, undergoes hydrolysis reactions upon boiling at pH 4. More than ten hydrolysis products were produced, of which five, – have been isolated and their structures determined. Two of these compounds, and , are diastereomeric humuladiene ...
Described herein, is the isolation and elucidation of two enantiomeric diastereomers of humulene diepoxide C from D. kalpari and D. rhadinostachya, of which unassigned diastereomers of humulene diepoxide C have been previously reported as components in beer brewed from aged hops. In addition, ...
The epoxide 2 was converted to a bicyclohumulenediol diacetate 3a in 70% yield by treatment with BF 3路OEt 2-Ac 2O, while treatment of 2 with trimethylsilyl trifluoromethansulfonate gave an africen-10-ol ( 5a and 5b) in 80% yield. The two intermediates 3a and 5a furnished the ...
ChemInform Abstract: A BIOGENETICALLY SIGNIFICANT CYCLIZATION OF HUMULENE-4,5-EPOXIDE. THE SYNTHESIS OF THE AFRICANE-TYPE SESQUITERPENOID, 1,5,8,8-TETRAMETHYL-TRICYCLO(8,1,0,0(2,6))UNDEC-5-EN-9-OL-4-ONEdoi:10.1002/chin.198003361terpenesJ. A. MLOTKIEWICZ...
The complete reaction of humulene 9,10-epoxide ((2E, 6E)-9,10-epoxy-3,7,11,11-tetramethylcycloundeca-2,6-diene, (1)) with m-CPBA produced a hitherto unknown 2R*, 3R*, 6S*, 7S*, 9S*, 10S*-2,3;6,7;9,10-triepoxy-3,7,11,11-tetramethylcycloundecane (6) together with ...