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phase transfer catalysis     
相关语句
  相转移催化
     SYNTHESIS OF 1-O-AROYL-2,3,4-TRI-O-ACETYL-β-D-XYLOPYRANOSES BY PHASE TRANSFER CATALYSIS
     相转移催化合成1-O-芳酰基-2,3,4-三-O-乙酰基-β-D-吡喃木糖
短句来源
     N-Alkylatfon of 1,2,3-Benzotriazole by Phase Transfer Catalysis
     相转移催化1,2,3-苯并三唑N-烷基化的研究
短句来源
     Studies of Phase Transfer Catalysis——Ⅲ.Preparation of 1-~(14)C-1.1-Dibromo-2-Phenyl-cyclopropane and Its Derivatives
     相转移催化(PTC)反应研究——Ⅲ.1-~(14)C,1,1-二溴-2-苯基环丙烷及其取代物的合成
短句来源
     The gastrodin intermediate,p-formylphenyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside was synthesized in 53% yield by phase transfer catalysis.
     以相转移催化法合成了天麻素关键中间体——对甲酰苯基2,3,4,6-四-O-乙酰-β-D-吡喃葡萄糖苷,收率53%。
短句来源
     SYNTHESIS OF N-ALKYL DERIVATIVES OF 7-OXA-BICYCLO[2.2.1]-HEPT-5-ENE-2,3-DICARBOXIMIDE THROUGH PHASE TRANSFER CATALYSIS
     相转移催化合成7-氧杂双环[2.2.1]-庚-5-烯-2,3-二酰亚胺N-烃基衍生物
短句来源
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  相转移催化剂
     5-Aryloxymethyl-2-[(2-methylphenyl) ox yacetylamido]-1,3,4-thiadiazoles are synthesized by the reactions of 2-chlorophenyloxyacetyl chloride with 5-aryloxymethyl-2-amino-1 ,3,4-thiadiazoles under liquid-liquid phase transfer catalysis using PEG-40 0 as catalyst.
     以PEG 4 0 0为相转移催化剂 ,在液 液相条件下由邻甲基苯氧乙酰氯与 5 芳氧亚甲基 2 氨基 1,3,4 噻二唑反应 ,合成了 10个新的 5 芳氧亚甲基 2 邻甲基苯氧乙酰胺基 1,3,4 噻二唑 .
短句来源
     Butoxy-4-nitrobenzene was synthesized from 1-chloro-4-nitrobenzene and n-butanol using Bu_4N+Br- as phase transfer catalysis in the presence of KOH.
     在 KOH存在下 ,以 Bu4 N+ Br- (TBAB)为相转移催化剂 ,由对硝基氯苯和正丁醇合成了 1 -丁氧基 -4 -硝基苯。
短句来源
     Phase Transfer Catalysis in the Synthesis of 2-(Dichloromethyl) benzimidazole
     相转移催化剂在合成2-(二氯甲基)苯并咪唑中的应用研究
短句来源
     The catalytic behavior and side reaction of phase transfer catalysts tetrabutyl ammonium bromide(TBAB)and polyethylene glycol(PEG)on the synthesis of α amylcinnamaldehyde by the way of phase transfer catalysis were studied.
     研究了相转移催化法合成α戊基肉桂醛过程中相转移催化剂四丁基溴化铵(TBAB)、聚乙二醇(PEG)的催化行为和副反应。
短句来源
     Wood powder converted into thermoplastic wood(TPW) though benzylated with phase transfer catalysis(PTC),which extruded and mixed into TPW/MAH-PP/Mica composite with maleic anhydride grafted polypropylene(MAH-PP) and Mica.
     通过苄基化法在相转移催化剂(PTC)的作用下可将木粉制备成热塑化木材(TPW),然后将热塑化木材、马来酸酐接枝聚丙烯按一定比例配料后,再分别与不同质量的云母共混挤出,制备成热塑化木材/马来酸酐接枝聚丙烯/云母复合材料(TPW/MAH-PP/Mi-ca)。
短句来源
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  相转移催化作用
     We find the results that [N(Bu)_4]Br and LXn-PEG-A are with good phase transfer catalysis effects,and that the carboxylic ether-ester compounds with the structure of R_3COOCHR_2OR, are a type of new synthetic perfumery with good development future.
     研究结果发现[N(Bu)_4]Br,LXn-PEG-A具有良好的相转移催化作用效果. R_3COOCHR_2OR_1结构的羧酸醚酯类化合物是一类很有开发前途的新型合成香料.
短句来源
     The phase transfer catalysis of PEG-X(X = 200, 400, 1000, 2000) in epoxidation of olefins catalyzed by metal porphyrin with NaOCl in CH2C12-H2O biphase system, a model for mimicking cyto-chrome P450, was studied, and compared with that of CH3(CH2)15N+(CH3)3Br- as the PTC.
     研究了聚乙二醇在模拟细胞色素P-450酶、CH_2Cl_2-H_2O两相体系中的相转移催化作用;
短句来源
     Phase Transfer Catalysis of Polystyrene Pyridine Resin
     聚苯乙烯-吡啶树脂的相转移催化作用
短句来源
     This paper studies three phase transfer catalysts with different molecular weights, i. e. polyethylene glycols (PEG300, PEG400, PEG600) for their catalytic effect in synthesizing a-amylcinnamaldehyde. Results show that these three PEGs can do well in phase transfer catalysis by effectively increasing the reaction yield, of which the one with the best catalytic effect is PEG400.
     本文采用三种不同分子量的聚乙二醇(PEG300、PEG400、PEG600)作为相转移催化剂,研究它们对于合成α-戊基肉桂醛的催化效果.结果表明:这三者都能够有效地起着相转移催化作用,提高反应产率,而其中以PEG400的催化效果为最好.
短句来源
     The phase transfer catalytic action of DCAS was studied through solid-liquid phase transfer catalysis etherification of phenol with epichlorohydrin in the presence of anhydrous potassium carbonate.
     选择苯酚与环氧氯丙烷,在无水碳酸钾存在下,固-液相转移催化醚化形成苯基缩水甘油醚为基本反应,比较了DCAS与其他几种季铵盐的相转移催化作用
短句来源
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  相转移催化反应
     Studies on Phase Transfer Catalysis Ⅴ. A Kinetic Study of the Cycloaddition of Dibromocarbene with Substituted Styrenes and α-Arylstyrenes by ~(14)C Labelling Method
     相转移催化反应研究 V.利用~(14)C标记法研究取代苯乙烯及α-芳代苯乙烯与二溴卡宾反应动力学
短句来源
     Application of microwave irradiation in phase transfer catalysis
     微波辐射在相转移催化反应中的应用
短句来源
     Studies on Interface Energy of Phase Transfer Catalysis Reactions
     相转移催化反应中界面性能的研究
短句来源
     Through dehydration reaction, phase transfer catalysis, esterification and hydrolysis, 2-[2-(carbomethoxy)anmobenzyl]-3-{4-[2-(N-carbazyl)ethoxyl] benzyl } malonates were synthesized through 6 steps with total yield of 12-18% employing the easily available cheap reagent such as L-tyrosine ester,Ethyl cyclohexanone- 2carboxylate, carbazole, 1,2-dibromoethane. Target molecules are analysis by UV, NMR, IR and MS.
     采用L-酪氨酸甲酯、乙氧羰环己酮、咔吧唑、1,2二溴乙烷等为反应原料,借助脱水反应、相转移催化反应、酯化和水解等反应合成了2-[2-(甲氧羰基)苯胺基]-3-{4-[2-(N-咔吧唑基)乙氧]苯基}丙酸等6个化合物,经7步反应,总收率为12-18%,条件温和,收率较高。
短句来源
     The Application of Phase Transfer Catalysis to Organic Synthesis
     相转移催化反应在有机化学合成的应用
短句来源
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  phase transfer catalysis
Under the conditions of phase transfer catalysis and nitrobenzene as the solvent, the halogen-exchange fluorination of 2,6-dichlorobenzaldehyde using KF as fluorinating agent was studied.
      
Synthesis of heteroaromatic N-β-glycosides of N-acetylglucosamine under the conditions of phase transfer catalysis: I.
      
The synthesis of ethophenprox analogs was performed by condensation of alcohols with benzyl halides under conditions of the phase transfer catalysis.
      
Wittig and Wittig-Horner reactions under phase transfer catalysis conditions
      
Phase transfer catalysis (PTC) is a very important method in synthetic organic chemistry having many advantages over conventional, homogenous reaction procedures.
      
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