缩合反应

本文利用GC-MS对苯胺与丙酮缩合反应的产物进行了结构分析。

The present research analyzed the structure of the condensation products of aniline with acetone by GC-MS.

席夫碱可以吸附废水中的金属离子，通过壳聚糖与苯乙醛发生缩合反应制备了壳聚糖缩苯乙醛Schiff碱。

Schiff base can absorb metal ions of waste water . It has been synthesized by condensation of chitosan with phenylacetaldehyde .

关于V（B1）在安息香缩合反应中催化机制的研究

A Study in V_ ( B_1 ) Catalyzed Benzoin Condensation Mechanism

N－苯磺酰基甲基苯胺与芳醛的缩合反应

Condensation of N - [ ( Phenylsulfonyl ) methyl ] - aniline with Aromatic Aldehydes

维生素K1缩合反应进展

Progress in vitamin K _1 synthesis

研究了以固体Ba（OH）2作为催化剂，使柠檬醛与丙酮醛醇缩合反应制备假紫罗酮的方法。

Using solid barium hydroxide as catalyst , a preparation method of pseudoionone from citral and acetone has been studied .

Sn（OBu~n）4溶胶-凝胶体系的水解缩合反应动力学

Kinetics of hydrolysis and condensation in sn ( obu ~ n ) _4 sol-gel systems

水相中重氮化合物与醛的缩合反应以及Rh（Ⅱ）催化的重氮分解反应

Reaction of Diazo Compound with Aldehydes in Water and Rh (ⅱ) - Catalyzed Diazo Decomposition

缩合反应时间为2h；二嗪磷缩合工艺的改进

Condensation time is 2 hours ; Improving Condensation of Diazinon

然后在70°C条件下，以邻苯二甲酰亚胺钾作为亲核试剂，与2-氯-5-氯甲基吡啶发生缩合反应，制备了N-（6-氯-3-吡啶甲基）邻苯二甲酰亚胺。

Afterwards , N - ( 6-chloro-3-pyridinemethyl ) phthalimide is prepared by using potassium phthalimide , as nucleophilic reagent , condensation reacting with 2-chloro-5-methylpyridine at a temperature of 70 ° C.

尿素在银电极表面上吸附及缩合反应的SERS研究

SERS Study of Adsorption and Condensation Reaction of Urea on Silver Electrode

HY沸石催化剂催化苯酚和三氯乙醛的二次缩合反应

Consecutive Condensation of Phenol and Chloral over HY Zeolite Catalysts

固载型维生素B1模拟物的合成与催化安息香缩合反应研究

Study on Synthesis of Polymer-supported Vitamin B1 Mimics as Catalyst for the Benzoin Condensation

选用W酸作为催化剂能够缩短反应时间、降低缩合反应温度、提高促进剂M的纯度；

W acid catalyst used in Salicylic acid catalyst can shorten reaction time , decrease reaction temperature and increase the purity of crude accelerator M.

根据FTIR测定结果，推测在反应中可能发生酮与酸酐的缩合反应。

It was deduced from FTIR that the condensation reaction was caused by a reaction of ketone group with anhydride .

SiO2负载磷钨酸（盐）催化剂对乙酰乙酸乙酯与乙二醇缩合反应的催化性能

Catalytic Performance of Phosphotungstic Acid ( Salt ) Supported on SiO_2 for Acetalization of Ethyl Acetoacetate with Glycol

在氟化钾催化下，芳香醛与氰乙酸乙酯发生羰基与活性亚甲基的缩合反应，高收率地得到缩合产物，且只得到E式产物。

The carbonyl methylene condensation reaction of aromatic aldehydes with ethyl cyanoacetate has been carried out smoothly in the presence of potassium fluoride only giving E isomers in high yield .

离子液体介质中FeCl3·6H2O催化下芳香醛与5,5-二甲基-1,3-环己二酮的缩合反应

FeCl_3 · 6H_2O Catalyzed Condensation of Aromatic Aldehydes with 5 , 5-Dimethyl-1 , 3-cyclohexanedione in Ionic Liquids

固体碱催化丙酮Aldol缩合反应

The Aldol Condensation of Acetone on a Solid Alkaline Catalyst

微波辐射和加热条件下的无催化剂无溶剂Knoevenagel缩合反应

Uncatalyzed and Solvent-Free Knoevenagel Condensation under Microwave Irradiation or Heating Conditions

（4S）-苯氧基-（S）-脯氨酸催化直接不对称羟醛缩合反应

Direct Asymmetric Aldol Reactions Catalyzed by ( 4S ) - Phenoxy - ( S ) - proline

Bu2SnO催化反应耦合法清洁合成苯氨基甲酸甲酯二甲基亚砜&缩合反应中新的活化剂

Clean synthesis of methyl N-phenyl carbamate through coupling route with catalyst Bu_2SnO DIMETHYL SULFOXIDE-A NOVEL ACTIVATING AGENT IN CONDENSATION REACTION

无溶剂微波辐射下的Knoevenagel缩合反应

Knoevenagel Condensation in Solvent Free Condition Under Microwave Irradiation

3&（二甲氨基）丙胺催化下的Knoevenagel缩合反应

Knoevenagel Condensation Reaction in the Catalysis of 3 - ( Dimethylamino ) Propylamine

方法：用典型的Knoevenagel缩合反应和混合酸酐法合成。

METHODS : The classic Knoevenagel condensation and mixed anhydride method were used .

功能性离子液体催化Knoevenagel缩合反应

Knoevenagel Condensation Reaction Catalyzed by Task Specific Ionic Liquid

水相Knoevenagel缩合反应的研究Ⅱ：碱性离子液体催化剂

Basic ionic liquid : a reusable catalyst for Knoevenagel condensation in aqueous solution

缩合反应温度为45℃，反应时间为5h；

The reaction temperature of condensation reaction is 45 ℃ and the reaction time is 5 h ;

分别探索了固体碱OH~（-1）／CaO和OH~（-1）／MgO，作为DMK与BD交叉缩合反应的催化剂制备羟酮的情况。

The preparation of hydroxide ketone with solid base OH-1 / CaO and OH-1 / MgO was studied .

离子液体介质中Knoevenagel缩合反应研究

Investigation of Knoevenagel condensation in hydrophilic ionic liquid