phase transfer catalyst
英 [feɪz trænsˈfɜː(r) ˈkætəlɪst]
美 [feɪz trænsˈfɜːr ˈkætəlɪst]
网络 相转移催化剂; 催化剂; 用相转移催化剂; 相转移催化
双语例句
- Synthesis and application of phase transfer catalyst triethyl benzyl ammonium chloride
相转移催化剂三乙基苄基氯化铵的合成与应用 - Phase transfer catalyst was used for synthesis of citral diethyl acetal, the yield has increased.
用相转移催化合成了柠檬醛二乙缩醛，提高了产率。 - It was pointed out that the quaternary ammonium salt was the most important phase transfer catalyst.
指出了此类合成反应中所采用的重要相转移催化剂是季铵盐类。 - A Study of Fixed-dose Combinations in Treating Tuberculosis Patients Tetrakis ( diethylamino) phosphonium bromide ( TPB) was a novel phase transfer catalyst used to prepare fluorinated aromatic compounds.
四联抗结核固定剂量复合剂临床治疗效果分析四（二乙胺基）溴化鏻（TPB）是制备含氟芳香族化合物的一种新型相转移催化剂。 - Allyl trisulfide was prepared with PEG-400 as phase transfer catalyst to raise the yield of the product and the content of the allyl trisulfide in the product.
以PEG-400为相转移催化剂合成三硫二丙烯，以提高收率和产品中三硫二丙烯含量。 - We used phase transfer catalyst to improve the deacetylation of Chitosan, and the hydrogen peroxide degradation to reduce the molecular of Chitosan.
本文通过使用相转移催化剂来提高壳聚糖的脱乙酰度，使用过氧化氢降解法降低壳聚糖的分子量。 - Polyethylene glycols can be used as effective phase transfer catalyst in halogen exchange fluorination.
聚乙二醇可作为卤素交换氟化反应有效的相转移催化剂。 - This paper described the mechanisms of synthesis of benzyl acetate by tetranbutylammonium bromide in the presence of phase transfer catalyst, and such factors as temperature, time are also discussed.
该文描述了相转移催化剂存在时合成醋酸苄酯的机理，对反应温度、反应时间等因素也进行了讨论。 - Using TBAB as phase transfer catalyst, N benzoyl caprolactam was synthesized from benzoyl chloride and caprolactam in cyclohexane.
四丁基溴化铵（TBAB）为相转移催化剂、环己烷为溶剂，用己内酰胺和苯甲酰氯合成了N-苯甲酰基己内酰胺。 - The synthesis of6-methyluracil from ethyl acetoacetate and urea with PEG-400 as phase transfer catalyst was studied.
研究了聚乙二醇-400为相转移催化剂，乙酰乙酸乙酯和尿素合成6-甲基脲嘧啶的工艺条件。 - The results showed that poly ( ethylene glycol) as a phase transfer catalyst can raise the conversion.
指出聚乙二醇作为相转移催化剂可增加转化率。 - The synthesis of benzoic acid from benzyl chloride by KMnO_4 oxidation in the presence of phase transfer catalyst, quaternary ammonium salt CTAB is reported.
研究了季铵盐CTAB催化高锰酸钾氧化氯化苄合成苯甲酸的反应。 - Mandelic acid and its analog can be synthesized from aromatic aldehydes and chloroform as raw material with the help of phase transfer catalyst.
以芳香醛和氯仿为原料，经相转移催化反应合成扁桃酸及其类似物。 - PEG 400 and PEG 600 worked as phase transfer catalyst in solid liquid phase N alkylation reactions.
N-烃基化反应中用PEG-400，PEG-600作为固-液体系相转移催化剂。 - This paper was study of atmospheric pressure synthesis of p-nitroanisole from p-nitrochlorobenzene, methanol and sodium hydroxide catalysed by phase transfer catalyst benzyl triethyl ammonium chloride.
以对硝基氯苯、甲醇和氢氧化钠为原料，用苄基三乙基氯化铵作相转移催化剂，在常压下合成了对硝基苯甲醚。 - Synthetic method of β-naphthyl ethyl ether used with acidic catalyst, basic catalyst and phase transfer catalyst is reviewed.
综述了酸性催化剂、碱性催化剂和相转移催化剂等催化合成β-萘乙醚的方法。 - The catalyst has high activity, selectivity and the characteristic of reaction controlled phase transfer catalyst.
该催化剂具有高活性、高选择性，且具有反应控制相转移催化剂的特性。 - As a phase transfer catalyst polyethylene glycol can improve the selectivity of the reaction.
聚乙二醇作为相转移催化剂可以提高反应的选择性。 - The asymmetric synthesis of mandelic acid in the presence of a chiral phase transfer catalyst was also studied.
本文还探讨了手性相转移催化条件下扁桃酸异构体的不对称合成。 - Study on catalytic property of polymer-supported phase transfer catalyst under different stirring speed
搅拌速度对聚合物相转移催化剂催化性能的研究 - This paper discusses the principle with which phase transfer catalyst acts on the synthesis of paclobutrazol.
本文讨论了相转移催化剂在多效唑合成中的作用原理。 - It summarized the development of asymmetric synthesis and the latest studies of phase transfer catalyst;
本论文主要工作包括以下几个方面：1、综述了不对称合成的发展历程及相转移催化剂的进展和最新研究成果； - The fluorination yield reached 81.2% when calixarene was chosen as phase transfer catalyst.
氟化反应中采用杯芳烃作为相转移催化剂，收率达81.2%； - The effects of phase transfer catalyst, reactant proportion, reaction temperature and time on quaterisation were studied.
通过对其溶解性和季铵离子含量的测定，研究了相转移催化剂、反应物配比、反应温度、反应时间等对季铵化反应的影响。 - A new kind of phase transfer catalyst of phosphotungstate was synthesized by a new way in this paper.
采用新的合成方法，合成了一种新型磷钨杂多酸盐相转移催化剂，研究了它在不同合成条件下的产率。 - The synthesis method of quinalphos by the process of compound phase transfer catalyst ( PTC) and the factors affecting synthesis yield were studied in this paper.
报导了采用复合相转移催化剂合成喹硫磷，并研究了各种因素对合成收率的影响。 - By repeated tests, a proper amount of phase transfer catalyst in the tcr-step synthesis of paclobutrazol is fixed.
通过反复试验，确定了多效唑三步合成中相转移催化剂的最佳用量。 - This paper has studied strong alkali catalyst KOH and phase transfer catalyst PEG400 in synthesizing Metoprolol by 4-( 2-methoxy-ethyl) phenol and epichlorohydrin by etherification reaction and amination reaction.
以对甲氧乙基苯酚和环氧氯丙烷为原料，强碱KOH为催化剂，PEG400（聚乙二醇400）为相转移催化剂，通过醚化反应和胺化反应合成了美多心安。 - Studies on the synthesis of nitriles using PEG400 as phase transfer catalyst or microwave irradiation under solvent-free conditions were carried out.
本文研究了在无溶剂条件下，相转移催化剂聚乙二醇400和微波辐射下腈类化合物的合成，获得了比较满意的结果。 - The influences of reaction conditions such as catalyst on the yield were discussed and the results show that pyridine and phase transfer catalyst affect the reaction evidently.
讨论了催化剂等反应条件对产率等的影响，结果表明吡啶和相转移催化剂对反应有明显的催化作用。