1) 7-hydroxycoumarin
7-羟基香豆素
1.
Ten novel 7-alkoxylcoumarins were synthesized by Williamson reaction of 7-hydroxycoumarin(1) or 7-hydroxy-4-methylcoumarin(2) and five alkyl halides using tetrabutylammonium bromide(TBAB) as a phase transfer catalyst.
以四正丁基溴化铵(TBAB)作相转移催化剂,7-羟基香豆素(1)或7-羟基-4-甲基香豆素(2)与5种卤代烃经Williamson反应合成了10个新的7-烷氧基香豆素,其结构经1H NMR,IR和MS表征。
2.
The coumarin derivatives were synthysized from 7-hydroxycoumarin by the Williamson etherification reaction and fluorination.
课题以7-羟基香豆素为原料，以对甲苯磺酸三氟乙酯(TsOCH_2CF_3)为烷基化试剂，合成7-(2,2,2-三氟乙氧基)香豆素和8-烯丙基-7-(2,2,2-三氟乙氧基)香豆素。
3) 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。
4) 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。
5) 7-hydroxy-8-methoxycoumarin
7-羟基-8-甲氧基香豆素
6) isoscopoletin
6-羟基7-甲氧基香豆素
补充资料：7-羟基香豆素
分子式：C9H6O3
分子量：162.14
CAS号：93-35-6
性质：白色针状结晶。熔点225-228℃（230-232℃）。易溶于醇、氯仿和乙酸，溶于稀碱液，难溶于醚，微溶于沸水（1g/100ml）。溶液显蓝色荧光。能升华。
制备方法：由2，4-二羟基苯乙酮与苹果酸在硫酸存在下于90-130℃之间进行缩合，消去乙酰基即得伞形酮。
用途：用作荧光指示剂和酸碱指示剂（pH为6.5-8.0）。
分子量：162.14
CAS号：93-35-6
性质：白色针状结晶。熔点225-228℃（230-232℃）。易溶于醇、氯仿和乙酸，溶于稀碱液，难溶于醚，微溶于沸水（1g/100ml）。溶液显蓝色荧光。能升华。
制备方法：由2，4-二羟基苯乙酮与苹果酸在硫酸存在下于90-130℃之间进行缩合，消去乙酰基即得伞形酮。
用途：用作荧光指示剂和酸碱指示剂（pH为6.5-8.0）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条