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1)  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。
2)  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。
3)  7-Hydroxy-4-methylcoumarin
7-羟基-4-甲基香豆素
4)  8-Acetyl-7-hydroxy-4-methylcoumarin
8-乙酰基-7-羟基-4-甲基香豆素
5)  6-methoxy-7-hy-droxy-4-phenylcoumarin
6-甲氧基-7-羟基-4-苯基香豆素
6)  4-Methyl-7-hydroxy-coumarin
4-甲基-7-羟基香豆索
补充资料:羟基香豆素
分子式:
CAS号:

性质:香豆素的羟基衍生物,有多种异构体,皆为无色晶体。3-羟基香豆素,熔点152℃。4-羟基香豆素,熔点210~212℃,与苯并-2-羟基-γ-吡喃酮互为互变异构体,遇三氯化铁显棕色。5-羟基香豆素,熔点229℃,遇三氯化铁显蓝紫色。6-羟基香豆素,熔点249℃。7-羟基香豆素,又名伞形酮(umbelliferone),熔点220℃。8-羟基香豆素,熔点160℃,遇三氯化铁显蓝绿色。大多溶于乙醇、乙醚等有机溶剂。遇碱则开环水解。用作有机合成试剂。

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