• 二羟基苯甲酸甲酯6);

    Protocatechuic acid methyl ester (6);

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  • 车间放大试验结果显示苯甲酸甲酯得率89.00%。

    Experimental result in an enlarged workshop scale shows that the yield of methyl benzoate is 89.00%.

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  • 氢化苯甲酸甲酯乙酯时,氢化物溶剂之比率重要

    The ratio of solvent to reactant to be hydrogenated was critical.

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  • 采用于多相选择加氢方法甲氧基苯甲酸甲酯合成大茴香

    The present invention features the multiple phase selective hydrogenation process to synthesize anisic aldehyde with methyl methoxybenzoate.

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  • 防腐剂、人工色素香料矿物油,对羟基苯甲酸甲酯、矿

    Free of preservatives, artificial color, fragrance, mineral oil, parabens, petroleum.

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  • 方法:以5 氯2 羟基苯甲酸甲酯为原料,硝化、还原反应合成

    METHOD: It was synthesized from methyl 5-chloro-2-hydroxyl benzoic acid via nine-step reaction with nitration, reduction, etc.

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  • 一种对氧基苯甲酸甲酯选择加氢合成大茴香方法,属于精细化工催化技术领域

    The present invention relates to selective hydrogenation process of methyl methoxybenzoate to synthesize anisic aldehyde, and belongs to the field of fine chemical catalysis technology.

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  • 氢化苯甲酸甲酯乙酯时应用催化剂量多少,似对产量影响,惟对氢化作用速度有关系。

    The amount of catalyst used for the hydrogenation of methyl benzoate and ethyl benzoate did not affect the yields, but affected the speed of hydrogenation.

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  • 分析了添加不同羟基苯甲酸或对羟基苯甲酸甲酯对样品凝聚粒子含量流变性能的影响

    The effects of the amount of additive on the coagulate particle contents and rheologic properties are analyzed.

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  • 2,4-二羟基苯甲酸甲酯原料经过反应水解反应羧反应合成2,4-二氯间苯二酚。

    The compound 2,4-dichlororesorcinol was obtained from the starting material 2,4-dihydroxybenzoate via chlorinated reaction, hydrolysis and decarboxylation.

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  • 主要成份:去离子水氢化聚癸烯、对羟基苯甲酸甲酯、对羟基苯甲酸丙酯丙烯酸共聚物矿物油香料

    INGREDIENTS: Deionized water, hydrogenated poly-decene, methyl p-hydroxybenzoate p-hydroxybenzoic acid propyl, acrylic acid copolymer, mineral oil, daily flavor.

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  • 最近媒体报道来自上海零度可乐原液中含有“对羟基苯甲酸甲酯”防腐剂,引发了大家对饮料安全性的关注。

    Recent media reports that a batch of Coke Zero concentrate from Shanghai contained the banned preservative methyl-p-hydroxybenzoate sparked concern about the safety of beverages.

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  • 以对羟基苯甲酸甲酯1,4丁二醇为主要原料,熔融交换合成介晶基-对羟基苯甲酸丁二醇酯(BBHB);

    Bis(p-hydroxybenzonic acid butanediolate)(BBHB)as mesogenic unit was prepared with methyl p-hydroxybenzoate, 1,4-butanediol and catalyst by melting transesterification.

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  • 辛醇原料,合成1-溴辛烷,将1-溴辛烷对羟基苯甲酸甲酯反应,然后水解,得到了4 -辛氧基苯甲酸

    1-bromooctane was manufactured by n -octanol as material, and reacted with methyl o -hydroxybenzoate, the 4-octanoxy benzoic acid was obtained.

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  • 去离子水印度醋栗红石榴提取液、茄红素丙烯酸共聚物酵母提取液、无花果精华、对羟基苯甲酸甲酯咪唑烷基丙二甘油

    Ingredients: Deionized water, amalaki, pomegranate extract, lycopene, acrylic acid copolymer, yeast extract, fig essence, Methyl Paraben, imidazolidinyl urea, propylene glycol and glycerol.

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  • 主要苯甲酰苯酚制备苯甲酸苯酯,然后重排、醚化所得

    It is based on phenol benzoate which is made from benzoyl chloride and phenol through rearrangement and etherification.

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  • 以对甲苯磺酸催化剂,对二甲氨基苯甲酸异丁醇为原料合成对二甲氨基苯甲酸丁酯。

    Isobutyl p-(dimethylamino) benzoate was synthesized by the esterification ofp-(dimethylamino)-benzoic acid with isobutanol using p-toluene sulfonic acid as the catalyst.

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  • 该法简单快速准确,可用于饼干月饼食品糖精钠、富马酸甲酯苯甲酸山梨日常检测。

    The method is simple, efficient and accurate, and suitable for routine analysis of saccharine sodium, dimethyl fumarate, benzoic acid, and sorbic acid in baked food such as biscuits and moon cakes.

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  • 它们乙酸苯甲醛、正葵14-甲基十五烷酸甲酯丙三醇苯甲酸69-十八碳二烯酸甲酯角鲨烷硬脂二十烷基油酸

    They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.

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  • 溴代环己烷苯甲酸乙酯原料经过反应合成了甲基丙烯酸二环己基苯甲酯

    With bromocyclohexane and ethyl benzoate as raw materials, dicyclohexylphenylmethyl methacrylate was synthesized by two steps.

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  • 结论3,4 -二甲氧基苯甲酸冰片脂性化合物,该实验结果可为3,4 -二甲氧基苯甲酸冰片进一步研究提供依据

    Conclusion 3, 4-dimethoxy bornyl benzoate is hydrophilic. The result will supply evidence for the further research of 3, 4-dimethoxy bornyl benzoate.

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  • 通过改变硫酸二乙酯用量水杨酸甲酯氧化钾的反应时间、氢氧化钠的用量,得到了2-乙氧基苯甲酸优化制备工艺条件

    The reaction conditions of 2-ethoxybenzoic acid were optimized by changing the amount of diethyl sulfate, reaction time of methyl salicylate and potassium hydroxide, the amount of sodium hydroxide.

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  • 通过改变硫酸二乙酯用量水杨酸甲酯氧化钾的反应时间、氢氧化钠的用量,得到了2-乙氧基苯甲酸优化制备工艺条件

    The reaction conditions of 2-ethoxybenzoic acid were optimized by changing the amount of diethyl sulfate, reaction time of methyl salicylate and potassium hydroxide, the amount of sodium hydroxide.

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