采用于多相选择加氢方法由对甲氧基苯甲酸甲酯合成大茴香醛。
The present invention features the multiple phase selective hydrogenation process to synthesize anisic aldehyde with methyl methoxybenzoate.
一种对甲氧基苯甲酸甲酯选择加氢合成大茴香醛的方法，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.
结果从仙茅中分得4个已知化合物，分别为仙茅苷、仙茅苷乙、仙茅素A及2，6-二甲氧基苯甲酸；
RESULTS 4 known compounds, 2,6-dimethoxybenzoic acid, curculigoside, curculigoside B, and curculigine A were isolated.
方法：以2氨基4 ，5二甲氧基苯甲酸为原料，分别经过环化、氯代、取代等反应，合成了五种目标化合物。
The five quinazoline compounds were prepared by using 2 amino 4,5 dimethoxy benzoic acid as original material, which underwent ring closing, halogenation and substitution.
研究以焦性没食子酸衍生物2，3，4-三羟基苯甲酸为原料经过甲基化、水解、酸化和精制成2，3，4-三甲氧基苯甲酸。
Preparation method of 2,3,4-trimethoxybenzoic acid is introduced, which was synthesized from 2,3,4-trihydroxybenzoic acid by methylation, hydrolysis, acidification and purification.
结论3,4 -二甲氧基苯甲酸冰片酯为亲脂性化合物，该实验结果可为3,4 -二甲氧基苯甲酸冰片酯进一步的研究提供依据。
Conclusion 3, 4-dimethoxy bornyl benzoate is hydrophilic. The result will supply evidence for the further research of 3, 4-dimethoxy bornyl benzoate.
以正辛醇为原料，合成1-溴辛烷，并将1-溴辛烷与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.
通过改变硫酸二乙酯的用量、水杨酸甲酯与氢氧化钾的反应时间、氢氧化钠的用量，得到了2-乙氧基苯甲酸的优化制备工艺条件。
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.
通过改变硫酸二乙酯的用量、水杨酸甲酯与氢氧化钾的反应时间、氢氧化钠的用量，得到了2-乙氧基苯甲酸的优化制备工艺条件。
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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