1)condensation reaction缩合反应
1.Synthesis of Z(E)-ethyl 3-oxo-2-(4-phenyl-1,3-dithiolan-2-ylidene)butanoate and its condensation reaction with arylaldehydes;2-(1-苯基-1，2-亚乙二硫基)亚甲基-3-羰基丁酸乙酯的合成及其与芳醛的缩合反应
2.Advances of condensation reactions in ionic liquids;离子液体中缩合反应研究进展
3.A study on the condensation reaction of lignosulfonate;木素磺酸盐缩合反应的研究
英文短句/例句
1.Most condensation reactions are equilibria.大多数的缩合反应是平衡反应。
2.The combined addition-elimination sequence is referred to as a condensation reaction.将联合加成-消除反应的结果称为缩合反应。
3.Studies on the Amidocarbonylation Reactions and Condensation Reaction of Alcohols;酰胺羰基化反应及醇参与的缩合反应研究
4.Studies on the Suzuki Coupling Reactions and Condensation Reactions in Green Media.;绿色介质中Suzuki偶联反应和缩合反应的研究
5.A condensation to quinoid systems occurs.发生了醌型体系的缩合反应。
6.Basic Catalysis of Zeolites-Bimolecular Condensation of Ethanol沸石的碱性催化——乙醇双分子缩合反应
7.DIMETHYL SULFOXIDE-A NOVEL ACTIVATING AGENT IN CONDENSATION REACTION二甲基亚砜──缩合反应中新的活化剂
8.Knoevenagel-type Condensation Reactions Promoted by Organocatalyst;有机小分子促进的Knoevenagel类缩合反应
9.A Study of the Benzoin Condensation Reaction Using the PTC UNDER Microwave Heating;微波加热相转移催化安息香缩合反应
10.Application of α-Carbanion to Hydroxyl-Aldehyde Condensation Reaction;α-碳负离子在羟醛缩合反应中的作用
11.Claisen-Schmidt Condensation Catalyzed by Basic Ionic Liquids碱性离子液体催化的Claisen-Schmidt缩合反应
12.Self-Condensation of Cyclohexanone over Keggin Type Lanthanum Phosphotungstate CatalystKeggin型磷钨酸镧催化环己酮自缩合反应
13.Ullmann Condensation Reaction of Bromamine Acid Using Solid Acid SO_4~(2-)/TiO_2 as Catalyst固体酸SO_4~(2-)/TiO_2催化溴氨酸Ullmann缩合反应
14.The esterification, polyesterification, polycondensation and the formation of diethylene glycol (DEG) reaction kinetic parameters were obtained.获得了酯化反应、酯化缩合反应、缩聚反应以及二甘醇生成反应的动力学参数。
15.The Alkaline Condensation of Furfural And Their Application In Synthesis of Perfume;糠醛的碱性缩合反应及其在香料合成中的应用
16.The Synthesis of Several Drug Intermediates Based on Knevenagel Condensation;基于Knoevenagel缩合反应的若干药物中间体的合成
17.Study on Synthesis of Poly (Phthalazinone Ether)s by Ullmann C-N and C-O Condensation Reactions;Ullmann缩合反应合成杂萘联苯聚芳醚的研究
18.Synthesis of novel ferrocenyldichalcones by solid aldol condensation reaction;固相缩合反应合成新型二茂铁基α,β-不饱和酮
相关短句/例句
condensation[英][,k?nden'se??n][美]['kɑnd?n'se??n]缩合反应
1.Studies on the Condensation Reaction of α,α-Diacetyl Ketene Dithioacetals with Arylaldehydes;α,α-二乙酰基二硫缩烯酮和芳醛的缩合反应研究
2.Self-condensation of n-Butyraldehyde Catalyzed by Solid Base Prepared with Microwave Irradiation;微波法制备的固体碱催化丁醛自缩合反应
3.A study on condensation reaction of cyclohexanone catalyzed by dealuminated USY;脱铝超稳Y催化环己酮缩合反应的研究
3)acetalization缩合反应
1.In the absence of any organic solvents,the acetalization of aldehydes or ketones with diols was investigated,which catalyzed by task-specific acidic ionic liquid under mild conditions.研究了以功能化酸性离子液体1-甲基-3-(4-磺酸基)丁基咪唑硫酸氢盐为催化剂,在无任何有机溶剂的条件下醛(酮)与二元醇的缩合反应,同时考察了催化剂用量、反应时间和反应温度等因素对缩醛(酮)收率的影响。
2.The acetalization of aldehydes or ketones with diols to the corresponding 1,3-d iox olane derivatives was performed at room temperature in the absence of any organi c solvent and dehydration agent by using different acidic ionic liquids as cata lysts, including HMImBF4, HeMImBF4, BMImH2PO4, BMImHSO4, H2SO4 and H3PO4.研究了以Bro¨nsted酸性离子液体1-正丁基-3-甲基咪唑磷酸二氢盐(BMImH2PO4)为催化剂,在不使用其它有机溶剂且无需脱水的条件下,于室温下进行醛(酮)与二元醇的缩合反应,得到了由中至高的转化率和高选择性。
4)Condensation reactions缩合反应
5)Knoevenagel condensationKnoevenagel缩合反应
1.Knoevenagel condensation catalyzed by sodium zinc phosphate;NaZnPO_4催化Knoevenagel缩合反应
2.Investigation of Knoevenagel condensation in hydrophilic ionic liquid;离子液体介质中Knoevenagel缩合反应研究
3.Recent progress of microwave irradiation,ultrasonic wave,molecule sieve,task specific and functionalized catalyst,chitosan,solid acid(or base) and ionic liquid accelerated Knoevenagel condensation reaction on the synthesis of of riot control agent 2-chlorobenzalmalononitrile(CS) and its analogs were introduced.介绍了Knoevenagel缩合反应用于控暴剂2-氯苯亚甲基丙二腈(CS)及其类似物的合成方法最新进展,包括微波、超声、分子筛、负载型催化剂、壳聚糖、固体酸(碱)和离子液体等促进的CS及其类似物合成,并预测分子筛膜反应器和纳米催化剂将用于CS合成。
6)self-condensation自缩合反应
1.A novel solid catalyst(CC-1) for self-condensation reaction of cyclohexanone were developed.研制了一种应用于环己酮自缩合反应的新型固体催化剂CC-1。
2.Keggin type lanthanum phosphotungstate(LaPW12O40) catalyst was prepared and used in self-condensation of cyclohexanone to produce dimer-cyclohexanone(cyclohexyl-cyclohexanone,cyclohexenyl-cyclohexanone).合成了Keggin型磷钨酸镧(LaPW12O40),并以LaPW12O40为催化剂催化环己酮进行自缩合反应合成了环己酮二聚物(环己基环己酮、环己烯基环己酮)。
延伸阅读
缩合反应缩合反应condensationreaction两个或两个以上有机分子相互作用后以共价键结合成一个大分子，并常伴有失去小分子（如水、氯化氢、醇等）的反应。在多官能团化合物的分子内部发生的类似反应则称为分子内缩合反应。缩合反应在有机化学，尤其是有机合成中应用很广。①羟醛缩合反应。为醛、酮或羧酸衍生物等羰基化合物在羰基旁形成新的碳-碳键，从而把两个分子结合起来的反应。这些反应通常在酸或碱的催化作用下进行。一个羰基化合物在反应中生成烯醇或烯醇负离子后进攻另一个羰基的碳原子，从而生成新的碳-碳键。最简单的例子是乙醛的羟醛缩合反应：②克莱森缩合反应。羧酸酯在强碱作用下发生缩合，生成β-酮酯。例如，乙酸乙酯在乙醇钠作用下生成乙酰乙酸乙酯：③苯偶姻缩合反应。芳香族醛在氰化钾作用下发生两分子缩合，生成苯偶姻类化合物：④偶姻缩合反应。羧酸酯与钠发生双分子还原，生成偶姻类化合物。如以适当的链状二元羧酸酯为原料，通过这个反应，使发生分子内偶姻缩合，能制得中环化合物：⑤曼尼希反应。醛或酮与甲醛和二级胺或一级胺在弱酸性条件下发生氨甲基化反应。应用这个反应可在很温和的条件下合成一些复杂的、原仅天然存在的有机含氮化合物。例如，用等摩尔的丁二醛、3-戊酮二酸和甲胺的稀溶液，在35℃、pH＝5的条件下缩合，生成托品酮：⑥维蒂希反应。醛或酮与维蒂希试剂发生缩合，是合成烯烃的重要方法。有些反应虽未涉及碳椞技男纬桑肮呱弦渤莆õ合反应。例如醛或酮与伯胺生成席夫碱，醛或酮与醇在酸作用下生成缩醛或缩酮的反应等。二元酸与二元醇或二元胺生成聚酯、聚酰胺的反应也属这种情况，称为缩合反应。
