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

共沸物氢氧化钠,分离出酚钠盐和苯乙酮

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

间苯氧基苯乙酮可由酚钾与间苯乙酮在醋酸铜催化下以高产率合成。

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The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.

了4-羟基香豆素的合成方法,重点介绍了苯酚法,乙酰水杨酸法,水杨酸甲酯法,邻羟基苯乙酮法。

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

苯乙酮烷基化试剂,以高产率和100%的转化率以及100%的选择性得到了酚的O-烷基化产物。

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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。

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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,以甲苯和乙酸酐原料,在催化剂三氯化铝存在下合成对甲基苯乙酮,并确定甲苯,乙酸酐和三氯化铝的最佳摩尔比4: 1: 2,收率86.2%。

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《分钟地科普(精选双语)

But when researchers paired the orange-cherry-almondy scent of the chemical acetophenone with a painful electric shock, lab rats quickly learned to fear it.

但是当研究者让老闻到混有橘子、桃、扁桃道的化学物苯乙酮时同时施以电击,实验便意识了害怕。

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