Sodium phenolate and acetophenone can be obtained by adding sodium hydrate into azeotrope.
共沸物中加入氢氧钠,分离出钠盐苯。
Sodium phenolate and acetophenone can be obtained by adding sodium hydrate into azeotrope.
共沸物中加入氢氧钠,分离出钠盐苯。
Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.
间苯氧基苯可由钾与间溴苯在醋酸铜催高产率合成。
The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.
概述了4-羟基香豆素的合成方法,重点介绍了苯法,酰水杨酸法,水杨酸甲酯法,邻羟基苯法。
The phenols were O-alkylated with 100% conversion and 100% selectivities using phenacyl bromide and benzyl bromide as alkylating reagents.
用溴代苯溴苄为烷基试剂,高产率100%的转率及100%的选择性得到了的O-烷基产物。
P-hydroxyacetophenone combined with methyl chloroacetate can get a new acetonate.This new acetonate combined with another compound-ethanolamine and get a new schiff base.
由对羟基苯与氯酸甲酯反应,得到一种,这种再与醇胺反应得到一种新的希夫碱。
Firstly, p-methylacetophenone was obtained in the presence of alchlor as the catalyst, and the optimum condition was 4:1:2 in molar ratio for toluene, acetic anhydride and alchlor with yield of 86.2%.
首先,甲苯酸酐为原料,在催剂三氯铝存在合成对甲基苯,并确定甲苯,酸酐三氯铝的最佳摩尔比为4: 1: 2,收率为86.2%。
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