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 ...
It was further found that the oxidation products of humulene present in hop (five isomers of humulene diepoxy) have a typical herbal/spicy flavor and influence advantageously the organoleptic properties of beer. It has been further verified that nonvolatile compounds such as purine nucleosides and ...
Humulene Diepoxides from the Australian Arid Zone Herb Dysphania: Assignment of Aged Hops Constituents Dysphania is an abundant genus of plants, many of which are endemic to the Australian continent, occurring primarily in arid and temperate zones. Despite t... YP Tan,KA Agnew〧Rancis,J Hofmann...
货号B50933英文名称Humulene epoxide II 储存条件2-8℃ 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-tetraazacycloeicosane-3,9,13,19-tetrone; 6,10,16,20-...
CheminformSmith, R., Mahiou, B., and Deinzer, M., Hydrolysis Products of Humulene Diepoxide A. Tetrahedron 1991, 47(6), 933.Smith, R. J., Mahiou, B., and Deinzer, M. L. Hydrolysis products of humulene diepoxide A. 47 (6) :933-940 1991....
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, ...
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 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-...
Computations are carried out in transport approximation (first collision method) for the attenuation of the field of thermal neutrons formed in counters of the CHM-8 and CHMO-5 type. The deflection of the thermal neutron field is also obtained near the counters and in the air (shade effect)...
the spontaneous radical reaction with triplet oxygen (3O2) of 15 has been studied: humulene epoxide II (20), humulene epoxide III (22c) and humulene diepoxide A (22a) were reported as the main autoxidation products (Pickett, Sharpe, & Peppard, 1977). No quantitative data regarding product ...