Sodium phenolate and acetophenone can be obtained by adding sodium hydrate into azeotrope.
共沸物

氢氧化钠,分离出酚钠盐和
酮。
Sodium phenolate and acetophenone can be obtained by adding sodium hydrate into azeotrope.
共沸物

氢氧化钠,分离出酚钠盐和
酮。
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
香豆素的合成方法,重点介绍了
酚法,
酰水杨酸法,水杨酸甲酯法,邻羟

酮法。
The phenols were O-alkylated with 100% conversion and 100% selectivities using phenacyl bromide and benzyl bromide as alkylating reagents.
用溴代
酮和溴苄
烷
化试剂,以高产率和100%的转化率以及100%的选择性得到了酚的O-烷
化产物。
Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.
间
氧

酮可由酚钾与间溴
酮在醋酸铜催化下以高产率合成。
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

酮与氯
酸甲酯反应,得到一种酮,这种酮再与
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,以甲
和
酸酐
原料,在催化剂三氯化铝存在下合成对甲

酮,并确定甲
,
酸酐和三氯化铝的最佳摩尔比
4: 1: 2,收率
86.2%。
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