The phase transfer catalyst Ql can be repeatedly used.
相转移催化剂可反复使用。
CONCLUSION The phase transfer catalyst has advantages of simple starting material, convenient operations and mild reaction conditions.
相转移法合成萘丁美酮具有所用试剂易得，操作方法简便，反应条件温和，成本较低等优点。
The results show that catalytic efficiency of the phase transfer catalyst BETAC is higher than TBAB, and TBAB is nearly as efficient as TEBA.
实验结果表明：本体系中相转移催化剂的催化效率是苄基三乙基氯化铵大于四丁基溴化铵和四乙基溴化铵；
The yield was increased through adding tetrabutyl ammonium bromide as the phase transfer catalyst, and using excessive diisopropyl phosphite to compensate its hydrolyzation.
通过添加适量四丁基溴化铵为相转移催化剂，使用过量的亚磷酸二异丙酯以补偿其在强碱环境中的水解，从而提高了反应产率。
Authors have obtained by using m-phenoxybenzyltriethylammonium chloride as the phase transfer catalyst which is cheap, available and self—productive. We hare achieved better results.
研究出用价廉、易得，能够方便自产的间—苯氧基苄基三乙基氯化铵作为相转移催化剂，获得了较好的结果。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
采用正丁醇-氢氧化钠反应体系，以十六烷基三甲基溴化铵为相转移催化剂，制得脱乙酰度为92%的壳聚糖。
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。
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。
As a phase transfer catalyst, polyethylene glycol could 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。
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。
In the new reaction system, product can easily isolate and catalyst can be recycled owing to the phase transfer catalysis character of catalyst in reaction process.
在此新反应体系中，催化剂呈现反应过程相转移催化特性，产物易分离，催化剂可回收循环利用。
Ethyl pyruvate was synthesized from ethyl lactate using TBHP as oxidant and TBAB as phase transfer catalyst, the purity of product was over 98 %.
以叔丁基过氧化氢(TBHP)为氧化剂，四丁基溴化铵(TBAB)为相转移催化剂，有效地将乳酸乙酯氧化合成丙酮酸乙酯，产品纯度达98%以上。
The technological conditions of the synthesis of DL-phenylalanine by using phase - transfer catalyst technology and others are discussed.
研究了应用相转移催化等技术合成DL -苯丙氨酸的工艺条件。
Sulfadiazine-polylactide, a tumor targeting drug carrier, was successfully synthesized by the phase transfer catalysis(PTC)with tetrabutyl ammonium chloride hydroxide as catalyst.
采用相转移催化法以四丁基氯化铵为催化剂合成了端基含磺胺嘧啶的聚乳酸，将肿瘤导向基团引入了可生物降解药物载体。
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。
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。
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。
Polymer imidazole salt 1 is a new kind of polymer phase transfer catalyst, which has the advantages of convenience for preparation, good thermal stability, and high catalytic activity.
高分子咪唑盐1是一种新型高分子相转移催化剂，具有制备简单、稳定性好、催化活性高等特点。
This article studies benzyl - triethyl ammonium chloride as catalyst of phase - transfer to prepare for phenyl acetate. Get the best operating condition and get the yield of 86%.
研究了以苄基三乙基氯化铵为相转移催化剂制备乙酸苄酯，得出了最佳操作条件，使反应收率达86%。
In this paper, we investigated the arylation reaction ofp-amino acetylbenzene with ferrocene catalyzed by phase transfer catalyst.
本文以对氨基苯乙酮和二茂铁为底物，在相转移催化剂存在的条件下发生重氮芳基化反应。
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。
The reaction is based on the treatment of epichlorohydrin with sodium stearate in the presence of phase transfer catalyst. About 90% of monoglycerides are obtained in quantitive yields.
在相转移催化剂存在下，硬脂酸盐和环氧氯丙烷反应，可获得含量90%左右的脂肪酸甘油单酯。
In addition, flow pattern of catalyst in gasoline riser has been studied and the result shows that gas solid contact in the riser was in the form of dense phase force transfer.
通过对汽油提升管内催化剂流动形式的分析，提升管内气固接触形式为密相气力输送。
Tricresylphosphate was synthesized under the function of phase transfer catalyst, based on the raw materials of sodium cresol and phosphorus oxychloride.
以甲酚钠和氧氯化磷为原料，在相催化剂的作用下，合成三甲苯磷酸酯。
The catalytic oxidation of cinnamic acid with phase transfer catalyst(PTC), quaternary ammonium salt benzyltrimethylammonium chloride is reported.
研究了季铵盐催化下高锰酸钾氧化肉桂酸的反应。
Different technologies for the preparations of SPE, including solvent method, non-solvent method and phase transfer catalyst method, were introduced.
重点综述了无溶剂酯交换二步法合成蔗糖脂肪酸多酯的工艺；
Add a phase transfer catalyst PEG-400 and the inhibitor ofp-tert-butyl-catechol synthesis of cinnamic acid on the yield …
请求英语高手翻译一下添加相转移催化剂PEG-400和阻聚剂对叔…
Add a phase transfer catalyst PEG-400 and the inhibitor ofp-tert-butyl-catechol synthesis of cinnamic acid on the yield …
请求英语高手翻译一下添加相转移催化剂PEG-400和阻聚剂对叔…
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