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

共沸物中加入氢氧钠,分离出酚钠盐和苯乙

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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,水杨酸甲法,邻羟基苯乙法。

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

用溴代苯乙和溴苄为烷基试剂,以高产和100%的以及100%的选择性得到了酚的O-烷基产物。

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

间苯氧基苯乙可由酚钾与间溴苯乙在醋酸铜催下以高产合成。

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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.

由对羟基苯乙与氯乙酸甲反应,得到一种,这种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,以甲苯和乙酸酐为原料,在催剂三氯铝存在下合成对甲基苯乙,并确定甲苯,乙酸酐和三氯铝的最佳摩尔比为4: 1: 2,收为86.2%。

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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.

当研究者让老鼠闻到混有橘子、桃、扁桃味道的化学物苯乙酮以电击,实验鼠很快便意识了害怕。

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mesylerythrol, mesyloxyethylaminohexitol, met, meta, meta-, metaacetaldehyde, meta-acid, meta-aminotoluene, meta-analysis, meta-ankoleite,

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3G, 401(K), a,
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