苯乙酮

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

共沸物中加入钠,分离出钠盐和苯乙酮。

2.Phenoxyacetophenone could be prepared from potassium phenolate and m bromoacetophenone via Ullmann reaction catalyzed by copper acetate in high yields.

间苯基苯乙酮可钾与间溴苯乙酮在醋酸铜催下以高产率合成。

3.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-基香豆素的合成方法，重点介绍了苯法，乙酰水杨酸法，水杨酸甲酯法，邻基苯乙酮法。

4.The phenols were O-alkylated with 100% conversion and 100% selectivities using phenacyl bromide and benzyl bromide as alkylating reagents.

用溴代苯乙酮和溴苄为烷基试剂,以高产率和100%的转率以及100%的选择性得到了的O-烷基产物。

5.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.

基苯乙酮与氯乙酸甲酯反应,得到一种酮,这种酮再与乙醇胺反应得到一种新的希夫碱。

6.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，以甲苯和乙酸酐为原料，在催剂三氯铝存在下合成甲基苯乙酮，并确定甲苯，乙酸酐和三氯铝的最佳摩尔比为4: 1: 2，收率为86.2%。