8-ACETYL-7-HYDROXY-4-METHYLCOUMARIN 1.2 Synonyms 2H-1-Benzopyran-2-one, 8-acetyl-7-hydroxy-4-methyl- 4-Methyl-7-hydroxy-8-acetocoumarin 4-Methyl-7-hydroxy-8-acetylcoumarin 7-Hydroxy-8-acetyl-4-methylcoumarin 8-Acetyl-4-methyl-7-hydroxycoumarin 8-ACETYL-4-METHYLUMBELLIFERONE 8-Acetyl-7-hydro...
补充资料:8-乙酰基-7-羟基-4-甲基香豆素 分子式:C12H10O4分子量:218.21CAS号:2555-29-5性质:结晶。制备方法:用间苯二酚与乙酰乙酸乙酯在硫酸参与下缩合,生成7-羟基-4-甲基香豆素,然后以乙酸酐乙酰化,得7-乙酰氧基-4-甲基香豆素,后者在无水三氯化铝参与下加热经分子重排后得到该品。用途:色甘酸钠的中间体。
补充资料:8-乙酰基-7-羟基-4-甲基-2H-1-苯并吡喃-2-酮 分子式:C12H10O4分子量:218.21CAS号:2555-29-5性质:结晶。制备方法:用间苯二酚与乙酰乙酸乙酯在硫酸参与下缩合,生成7-羟基-4-甲基香豆素,然后以乙酸酐乙酰化,得7-乙酰氧基-4-甲基香豆素,后者在无水三氯化铝参与下加热经分子重排后得到该品。用途:...