benzaldehyde

Based on the reactions , this paper reports research for synthesizing benzaldehyde.

简要介绍以此类方法对合成苯甲醛的研究.

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First, the synthesis of asarone reference substance was as a research activity, Second, the aromatic ketone was synthesized by Friedel-Crafts reaction, Meanwhile, the synthesis of 2,4,5-trimethoxy benzaldehyde used as intermediates.

首先合成α-细辛醚作为研究活性的对照品，其次通过傅克反应合成一系列的芳香酮，同时合成2,4,5-三甲氧基苯甲醛作为中间体。

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Natural benzaldehyde is prepared by hydrolysis cassia leaf oil.

从桂叶油出发,通过碱性水解制备天然苯甲醛.

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The direct hydrogenation of benzoic acid or methyl benzoate to benzaldehyde was a more preferable method for the synthesis of benzaldehyde from the view point of green technology.

而利用羧酸（或酯）可以直接一步加氢合成对应的醛，从绿色工艺来说具有较大优势。

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

在相转移催化条件下,从桂叶油出发通过碱性水解制备天然苯甲醛.

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The catalytic hydrolysis of benzal chloride and benzyl chloride mixture was studied, benzal chloride forming benzaldehyde in 95% yield, while the benzyl choride unreacted.

研究了亚苄基二氯和苄基氯混合物的催化水解反应，亚苄基二氯水解率达95%，而苄基氯不发生化学反应。

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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双席夫碱,通过抗菌活性测试寻找具有抗菌活性药物.

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The phenytoin sodium is prepared by means of condensation, oxidation and ringclosure condensation from benzaldehyde.

以苯甲醛为原料,通过缩合 、 氧化、关环缩合等多步合成苯妥英钠.

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Study on the disposal of benzaldehyde dibromide exhaust gas from drying kiln

二溴醛干燥窑尾气治理方法研究

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This invention discloses a method to prepare benzaldehyde by ammonia-catalyzed continuous cinnamamide hydrolysis in near-critical media.

本发明公开了一种近临界水中氨水催化肉桂醛连续水解制备苯甲醛的方法.

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The problem of the terminal control of reaction in the preparation of benzaldehyde using benzyl chloride is solved by this method.

该法解决了由氯化苄生产苯甲醛反应的终点控制问题。

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A new process to prepare a bright silver powder was developed: reducing KAg ( CN)_2 with methylene oxide and benzaldehyde as reductant to obtain a bright silver powder of average diameter of 9.6 μ m.

研究了一种制备光亮片状银粉的新工艺：用添加表面剂的甲醛和苯甲醛混合悬浮液作还原剂，还原碱金属氰化银，获得平均粒径9.6μm的光亮片状银粉；

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The efficiency of H 2 O 2 utilization is 100 % and the selectivity to benzaldehyde is 100 %.

在体系中,催化剂以均相的方式催化反应,以多相的方式分离回收.

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The results from GC-MS indicated that the main products obtained from photolysis were benzaldehyde and diphenyl disulfide. On the basis of these results, the mechanism of sensitized photolysis of title compounds was proposed;

气相色谱-质谱联用仪分析结果表明，敏化光解产物主要为苯甲醛和二苯基二疏醚，在此基础上对标题化合物敏化光解的机制提出了看法。

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Natural benzaldehyde is prepared by hydrolysis of cassia leaf oil.

从桂叶油出发，通过碱性水解制备天然苯甲醛。

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Study on catalytic selective oxidation of benzoic alcohol for synthesis of benzaldehyde

催化选择性氧化苯甲醇合成苯甲醛反应研究

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Benzoic acid can be used to produce phenol, caprolactam, terephthalic acid, while benzaldehyde is the raw material to produce Malachite Green, lauraldehyde, lauric acid.

苯甲酸是生产苯酚，己内酰胺和对苯二甲酸的原料，苯甲醛是生产孔雀绿、月桂酸和月桂醛的重要原料。

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A series of industrial catalysts for hydrogenation of acid-free benzaldehyde were prepared by co-precipitation method.

运用共沉淀法制备了系列锌锰复合纳米催化剂,并用于气相催化加氢苯甲酸合成无氯苯甲醛.

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Preparation of Natural Benzaldehyde from Hydrolysis of Cassia Leaf Oil

桂叶油水解制备天然苯甲醛的研究

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Pyrrole and Benzaldehyde react with acid catalysis to form the cyclic intermediate 3 ( Tetraphenylporphyrinogen). 3 is converted irreversibly to the TPPH_2 and TPC.

吡咯、苯甲醛在酸催化下生成环状中间体，不可逆的转化生成TPPH2与TPC；

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The catalytic system also showed good catalytic activity in the oxidation of other aldehydes. Benzaldehyde derivatives with electron-withdrawing group and aliphatic aldehydes were almost quantitatively converted into their corresponding acids.

应用此催化体系催化其它醛的氧化同样表现出较好的催化活性，有缺电子取代的芳香醛和脂肪醛几乎定量生成相应的羧酸。

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Benzaldehyde thiosemicarbazone and 3 nitrobenzaldehyde thiosemicarbazone complexes with transition metal and the anti cancer activities ⅰ

苯甲醛缩氨基硫脲、3-硝基苯甲醛缩氨基硫脲的过渡金属配合物及其抗癌活性Ⅰ

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Hydantoin was synthesized from glycine and sodium cyanate, which was condensed with benzaldehyde to give monohydrated sodium phenylpyruvate in 67.0% of overall yield after alkaline hydrolysis.

由甘氨酸和氰酸钠反应合成海因，然后与苯甲醛缩合，经碱水解得到一水合苯丙酮酸钠，总收率为67.0%。

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Direct oxidation of toluene is a simple and clean route for manufacture of benzaldehyde.

简单清洁的甲苯直接氧化法是苯甲醛生产技术的发展方向.

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Dibenzalpenlpentaerythritol was directly synthesized from benzaldehyde and pentaerythritol under microwave irradiation with sulfates used as catalyst.

在微波辐射下用硫酸盐催化合成了标题化合物.

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Preparation of Benzaldehyde by Hydrolysis of Cassia Leaf Oil Using Phase transfer Catalysts

相转移催化条件下从桂叶油制备天然苯甲醛的研究

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Chapter 5: The thermochromism of condensations of aromatic amine with benzaldehyde derivatives were studied.

第五章：研究了苯甲醛缩芳胺类希夫碱衍生物的热致变色性质，探讨了这类化合物的变色机理。

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Pitch resin was synthesized from benzaldehyde and heavy oil residue.

利用纯芳烃原料和重质渣油研制的沥青树脂具有优良的耐热性.

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Study on Catalyst for Hydrogenation of Methyl Benzoate to Benzaldehyde at Low H_2/ Ester Molar Ratio

低氢酯比下苯甲酸甲酯加氢催化剂的研究

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Direct oxidation of toluene is a simple and cheap production technology of benzaldehyde.

摘要甲苯直接氧化制备苯甲醛是一条最为简单而经济的生产工艺.

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