缩合剂
- 网络condensation agent;condensing agent;EDC
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以氮杂环庚2酮和1溴十二烷为原料合成氮酮,用氢氧化钾为反应缩合剂,PEG400为相转移催化剂。
Synthesis of azone was carried out from azacycloheptan-2-one and1-bromododecane using KOH as condensation agent and PEG-400 as phase transfer catalytic agent .
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在非质子溶剂中,以氢氧化钾为缩合剂,用溴代正了烷和苯乙酰胺进行N烃基化,合成了照相级N正丁基N苯乙酰胺。
In non-protonic solvent , with potassium hydroxide as condensation agent , N-alkylation has been carried out with bromo-n-butane and monoacetylaniline , and a photographic grade N-butyl-N - phenylacetamide has been synthesized .
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用碳二亚胺(EDCI)作为缩合剂,将光敏剂血卟啉与单克隆抗体Herceptin偶联,对HP-Herceptin偶联物进行透析、凝胶过滤纯化。
EDCI was performed to conjugate monoclonal antibody Herceptin to photosensitizer - hematoporphyrin .
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用亚磷酸三苯酯和吡啶做缩合剂,在NMP溶液中发生聚合反应,合成了端基为氨基的两种新型超支化聚酰胺。
Hyperbranched aromatic polyamides were prepared by direct polycondensations of the two monomers in the presence of triphenyl phosphite and pyridine as condensation agents in NMP .
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通过IR,NMR,HRMS等表征了新化合物的结构,考察了脂肪酸与卡培他滨的比例对产物构成的影响以及催化剂和缩合剂的最佳使用量。
The structures of the synthesized new molecules were characterized by IR , NMR and HRMS and the effects of the ratio of fatty acid and capecitabine on the substitution degree , the loading of catalyst and condensation agents were studied .
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HATU/HOAt/DIEA为缩合剂(4倍过量);
HATU / HOAt / DIEA ( 4-fold equivalent ) as the coupling reagent ;
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这些结果充分证明了这类缩合剂的优异性能,也说明了我们缩合剂分子设计的合理性。
The high efficiency of the immonium-type reagents also reflects the rationality of our molecular design .
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以TPSCl+Te(1:4)为缩合剂进行片段缩合,反应在1~2小时内即可达到完全。
The condensing reagent was TPSCl + 1-H-Tetrazole ( 1:4 ) and the condensation reaction went to completion within 1-2 hours .
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所使用的缩合剂为无水醋酸钠,环化剂为氯化物。
Anhydrous sodium acetate is used as condensating agent . Cyclizing agents used are benzene chloride , oleum and so on .
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通过3种不同的碱来制备2,4-二氯-5-氟苯甲酰乙酸甲酯,优选得到了其最佳缩合剂甲醇钠;
Methyl α - ( 2,4-dichloro-5-fluorobenzoyl ) acetate (ⅰ) was prepared by using three kinds of bases as condensating agent and the best one was obtained .
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采用正交试验法,考察了磺化剂用量、磺化时间、缩合剂用量以及缩合时间对分散剂性能的影响。
The effect of dosage of sulphonation and condensation agents , sulphonation and condensation time on properties of the dispersing agent was studied with orthogonal test method .
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以甲醇钠代替氢化钾作为缩合剂,以盐酸乙醇代替氯化氢气体,以甲苯代替乙醚,对此工艺进行了改进。
Replacement of potassium hydride by sodium methoxide , replacement of hydrogen chloride by HCl-ethanol , and replacement of ether by toluene were in the improved procedure .
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本文以苯胺为原料,经乙酰化,氯磺化添加氯化亚砜,用环氧乙烷做缩合剂,酯化采用液相法,得高质量乳白色产品。
4 - (β - sulfatoethylsulfonyl ) aniline was prepared by acetylation and chlorosulfonation ( together with addition of thionyl chloride ) of anilines , then condensing with ethylene oxide , after hydrolysis and esterification in liquid phase , a white product of high quality was obtained .
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以萘磷酸甲醛缩合物为分散剂,水溶性纤维素衍生物为粕稠剂,研究了它们的复合物对混凝土材料的分散性与粘稠性及其它性能的影响,并探索了其作用机理。
Effect of the compound prepared with naphthalene-sulphonate-formal dehyde as disperser and water soluble cellulose derivatives as thickening agent on concrete is studied and its mechanism of preformance is exploited .