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1)  5,7-Dihydroxy-4-methylcoumarin
5,7-二羟基-4-甲基香豆素
2)  6,7-Dihydroxy-4-methylcoumarin
6,7-二羟基-4-甲基香豆素
3)  5,7-dimethoxycoumarin /analysis
5,7-二甲氧基香豆素/分析
4)  5,7-Dimethoxycoumarin
5,7-二甲氧基香豆素
1.
Limettin (5,7-Dimethoxycoumarin)is an important organic chemical raw material and intermediate, which can be widely used as medicines,pesticides,spicery products and other chemical industries.
白柠檬素,化学名5,7-二甲氧基香豆素,是一种重要的有机化工原料及中间体,可广泛用于医药、农药、香料及其它精细化工行业。
2.
Objective To determine the contents of 5,7-dimethoxycoumarin in Fructus Citri Sarcodactylis from Guangdong at different collecting periods and provide reference for rational exploiting and utilizing the plant.
目的通过测定不同采收期的广佛手中5,7-二甲氧基香豆素的含量,为合理开发利用广佛手资源提供参考。
5)  7-hydroxy-4-methyl coumarin
7-羟基-4-甲基香豆素
1.
Synthesis of 7-hydroxy-4-methyl coumarin catalyzed by sulfoacid resin;
磺酸树脂催化合成7-羟基-4-甲基香豆素
2.
Synthesis of 7-hydroxy-4-methyl coumarin on stannic chloride anhydrous catalyst;
四氯化锡催化合成7-羟基-4-甲基香豆素
3.
7-hydroxy-4-methyl coumarin as chemical or medical intermediates is very important in industry.
7-羟基-4-甲基香豆素是一种重要的医药化工中间体。
6)  4-methyl-7-hydroxycoumarin
4-甲基-7-羟基香豆素
1.
4-methyl-7-hydroxycoumarin,acetic anhydride were used as main materials to synthesis 4-methyl-7-acetoxycoumarin by two methods,One was direct esterification of 4-methyl-7-hydroxycoumarin with acetic anhydride,the other was reacting of acetic anhydride with 4-methyl-7-hydroxy coumarin′ sodium salt, the construction of title compound was confirmed by m.
以乙酸酐、4-甲基-7-羟基香豆素为原料,采用4-甲基-7-羟基香豆素与乙酸酐直接酯化和乙酸酐与4-甲基-7-羟基香豆素的钠盐反应两种方法得到4-甲基-7-乙酰氧基香豆素,并通过熔点、红外、紫外、元素分析对所得化合物的结构进行表征。
补充资料:6,7-二羟基-4-甲基香豆素
分子式:C10H8O4
分子量:192.17
CAS号:529-84-0

性质:黄色针状结晶。熔点为272-274℃。溶于热水、醇、乙酸、浓硫酸和稀碱,溶液呈蓝色荧光,遇三氯化铁呈绿色。

制备方法:由苯醌与乙酐在浓酸存在下生成苯基三乙酸酯。在稀硫酸作用下与乙酰乙酸乙酯反应,将反应物倒入冰水中而析出甲基七叶亭粗品,过滤出的结晶用水重结晶,即得成品。

用途:用作荧光指示剂。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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