• The main volatile chemical components of RPR are(Z, Z)-9,12-octadecadienoic acid, n-hexadecanoic acid and 2-hydroxy-benzaldehyde.

    赤芍主要挥发成分Z, Z)-9, 12-十八碳二烯,正十六碳酸2-羟基苯甲醛

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  • Scheme 1. Condensation of pyrrole and benzaldehyde.

    图式1吡咯甲醛缩合反应。

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  • Methods for catalytic oxidation of toluene to benzaldehyde were reviewed.

    综述甲苯氧化甲醛几种合成方法

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  • A white or yellowish crystalline compound, C14H12O2, derived from benzaldehyde.

    乙醇酮一种白色淡黄色晶体化合物c14h12o2苯甲醛衍生而来。

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  • Synthesis of benzaldehyde glycol acetal catalyzed by strong-acid cation-exchange resin;

    无水硫酸铜作催化剂,在微波辐射下催化合成甲醛乙二醇缩醛。

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  • The yield of benzaldehyde glycol acetal was above 87.7% with zinc methanesulfonate as catalyst.

    甲基磺酸为催化剂时,苯甲醛缩乙二醇收率可达87.7%。

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  • Benzaldehyde was prepared by basic hydrolysis of cassia leaf oil using phase transfer catalyts.

    从桂出发,通过碱性水解制备天然甲醛。

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  • Synthesis of benzaldehyde ethylene glycol acetal under microwave irradiation catalyzed by sulfate;

    无水硫酸铜作催化剂,微波辐射催化合成甲醛乙二醇缩醛

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  • P-hydroxy benzaldehyde has proved to be stable during all sample storage, preparation and analytical periods.

    羟基苯甲醛样品储备准备分析过程中稳定性良好。

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  • The experimental results showed that microwave irradiation could enhance the yield of benzaldehyde semicarbazone.

    微波辐射条件下,以水合肼、尿素和苯甲醛为原料,采用一釜两步法合成了苯甲醛缩氨基脲。

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  • Objective To study Optimization of the react conditions of benzyloxy-benzaldehyde synthesized under microwave irradiation.

    目的研究微波合成苄氧基苯甲醛最佳反应条件

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  • The results showed that the main product was benzaldehyde and a little by-products were styrene oxide and phenylacetaldehyde.

    发现该工艺中主要生成苯甲醛少量副产物环氧苯乙烷苯乙醛等。

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  • The production technology, production capability, consumption, imports and exports of benzaldehyde are reviewed in this paper.

    本文苯甲醛生产技术产能消费进出口情况进行概述

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  • Objective: a series of novel substituted benzaldehyde diamines Schiff bases were synthesized for screening antibacterial agents.

    目的:设计合成一系列新的取代苯甲醛缩二胺类席夫碱,通过抗菌活性测试寻找具有抗菌活性药物

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  • Screening the microorganism that can convert cinnamon oil to benzaldehyde by enzyme was the prerequisite of enzymatic synthesis.

    筛选肉桂转化甲醛源菌株,微生物转化法生产天然苯甲醛的前提条件

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  • The conversion of benzaldehyde and yield of benzylidene acetone were influenced by reaction time, temperature and initial water volume.

    温度反应时间初始水量对反应转化率丁烯酮的产率有不同的影响。

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  • Under optimum conditions, the conversion of benzyl alcohol and the selectivity for benzaldehyde were as high as 95% and 94%, respectively.

    通过对反应条件优化,甲醇转化率可达95%,苯甲醛的选择性为94%。

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  • CONCLUSION The mail volatile chemical components of RPR are(Z, Z)-9,12-octadecadienoic acid, n-hexadecanoic acid and 2-hydroxy-benzaldehyde.

    结论赤芍主要挥发成分为(Z,Z)-9,12-十八碳二烯,正十六碳酸水杨醛。

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  • Guangxi province is rich in cinnamon resource, so studies on biodegradation of cinnamon oil into natural benzaldehyde have important significance.

    依靠广西丰富肉桂资源,进行生物降解天然苯甲醛研究具有重要意义。

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  • The bitter almond contains amygdalin. Acid or enzyme can decompose amygdalin to prussic acid and benzaldehyde. Prussic acid is a poisonous substance.

    杏仁含有苦杏仁,它在的作用下,可以分解产生氢氰酸苯甲醛,氢氰酸剧毒

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  • Amyl cinnamaldehyde was synthesized from benzaldehyde and n-heptanal by aldol condensation with catalyst potassium hydroxide in solvent ethylene glycol.

    苯甲醛正庚醛为原料,乙二醇溶剂氧化钾催化作用下羟缩合合成甲位桂醛

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  • Benzaldehyde ethylene glycol acetal was directly synthesized from benzaldehyde and ethylene glycol under microwave irradiation with cupric sulfate as catalyst.

    无水硫酸铜催化剂,在微波辐射下催化合成甲醛乙二醇缩醛

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  • This paper dealt with membrane catalytic oxidation of toluene to benzaldehyde in Al2O3tube which loading Fe-Mo catalyst. Three different feeding modes were investigated.

    研究了负载及装填铁-钼催化剂的氧化铝管应用于甲苯催化氧化制苯甲醛的反应。

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  • METHODS 3,5-di-tert-butyl-4-hydroxy benzaldehyde was synthesized from 2,6-di -tert-butyl phenol in a reaction medium of acetic acid-water which its ratio was investigated.

    方法以价格低廉的国产试剂2,6-二特丁基为原料,选择乙酸-水为反应介质合成关键中间体3,5-二特丁基-4-羟基甲醛,研究了乙酸-水配比对反应的影响;

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  • The starting reagent, p-trifluoromethylaniline, was subjected to diazotization, oximation, and hydrolyzationto synthesize p-trifluoromethyl benzaldehyde, with a total yield of 35.

    以对三氟甲基苯胺为原料,经重氮化、化、水解制得对三甲基苯甲醛收率35。

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  • Natural benzaldehyde is an important spice because of its superior quality and wide application, but the yield of natural benzaldehyde was so low that it couldn't meet market demand.

    天然甲醛一种品质优越应用面广食品香精,深受人们喜爱。

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  • Natural benzaldehyde is an important spice because of its superior quality and wide application, but the yield of natural benzaldehyde was so low that it couldn't meet market demand.

    天然甲醛一种品质优越应用面广食品香精,深受人们喜爱。

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