1) 2',5,6',7-tetrahydroxy-flavanonol
2',5,6',7-四羟基二氢黄酮醇
2) 2',5,6',7-tetrahydroxyflavanonol(THF)
2′,5,6′,7-四羟基二氢黄酮醇
1.
Determination of the 2',5,6',7-tetrahydroxyflavanonol(THF) in Scutellaria baicalensis by HPLC
HPLC法测定黄芩中2′,5,6′,7-四羟基二氢黄酮醇的含量
3) 7-hydroxy-2,3-dihydro-2-flaconoid
7-羟基二氢黄酮
1.
All the intermediate and final product were analyzed and characterized by liquid chromatography,ultraviolet Spectrophotometer,infrared Spectrophotometer,we make sure that the final product is 7-hydroxy-2,3-dihydro-2-flaconoid.
本文采用苯甲叉基丙二腈作为中间体,与间苯二酚在无水ZnCl2和HCl气体的催化作用下制得亚胺盐,再水解,脱羧,分离得到产物,通过液相色谱、紫外、红外等手段对中间产物和最终产物进行分析鉴定,确定最终产物是7-羟基二氢黄酮。
5) 5,7,3',5'-tetrahydroxy-dihydroflavone
5,7,3',5'-四羟基二氢黄酮
1.
RESULTS Seven compounds were isolated and elucidated as tricosanol (Ⅰ),heptacosanoic acid (Ⅱ),3,5,7,3′-tetrahydroxyflavone (Ⅲ),5,7,3′,5′-tetrahydroxy-dihydroflavone (Ⅳ),apigenin (Ⅴ),luteolin (Ⅵ) and stigmasterol-3-O-β-D-glucopyran.
结果分离鉴定了7个化合物,分别为正二十三醇(Ⅰ)、正二十七烷酸(Ⅱ)、3,5,7,3′-四羟基黄酮(Ⅲ)、5,7,3′,5′-四羟基二氢黄酮(Ⅳ)、芹菜素(Ⅴ)、木犀草素(Ⅵ)和豆甾醇-3-O-β-D-葡萄糖苷(Ⅶ)。
6) 3,5,7-tetrahydroxy flavanone
3,5,7-四羟基二氢黄酮
补充资料：7,3′,4′,5′-四羟基黄酮醇(7,3′,4′,5′-tetrahydroxyflavonol)
分子式：
CAS号：
性质：又称7,3′,4′,5′-四羟基黄酮醇(7,3′,4′,5′-tetrahydroxyflavonol)。绿黄色针状晶体。325～330℃时分解。溶于乙醇、丙酮、乙酸、乙酸乙酯和吡啶，微溶于水和乙醚，不溶于氯仿、苯和石油醚。溶于浓硫酸成黄色溶液。溶于碱成红色溶液。存在于刺槐(Robinia pseudacacia，Linn.)的干木和单籽皂荚(Gleditschia monosperma Walt.)中。
CAS号：
性质：又称7,3′,4′,5′-四羟基黄酮醇(7,3′,4′,5′-tetrahydroxyflavonol)。绿黄色针状晶体。325～330℃时分解。溶于乙醇、丙酮、乙酸、乙酸乙酯和吡啶，微溶于水和乙醚，不溶于氯仿、苯和石油醚。溶于浓硫酸成黄色溶液。溶于碱成红色溶液。存在于刺槐(Robinia pseudacacia，Linn.)的干木和单籽皂荚(Gleditschia monosperma Walt.)中。
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参考词条