羟基香豆素

对苯醌与乙酸酐经1,4-加成生成1,2,4-苯三酚三乙酸酯,然后与苹果酸反应经水解、环合反应得6,7-二羟基香豆素,再经甲基化得到6,7-二甲氧基香豆素,总收率为74.4%,整个过程反应条件温和,操作方便,适合工业生产的要求,对产品结构进行

PARA HYDROXY BENZONIC ACID

hydroxy-methoxy-mandelic acid

2-hydroxy-para-cymene【有化】

3，5-di hydroxy aceto phenone

HYDROXY Stearic Acid

hydroxy-

1 Hydroxy Benzotriazole

hydroxy-acid lithium soap