The phase transfer catalyst Ql can be repeatedly used.
相转移催化剂可反复使用。
Synthesis of prenyl benzoate under phase transfer catalysis was reported.
本文报道了相转移催化条件下异成烯基苯甲酸酯的合成。
Mandelic acid was synthesized by means of ultrasonic phase transfer catalysis(PTC) method.
采用超声波相转移催化技术合成了扁桃酸。
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 chiral ammonium salts have been used as phase transfer catalysts for asymmetric synthesis.
本文报导了在十种手性铵盐催化下芳醛和氯仿的不对称诱导反应。
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。
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。
Nanocatalysts were prepared by combining the method of precipitation with that of phase transfer.
通过沉淀法和相转移法的结合制备纳米催化剂。
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。
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。
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。
The paper reviews the effects of the phase transfer catalysts, base, temperature, time in the reaction.
发现碱的浓度、碱的用量、反应时间及相转移催化剂的存在对反应影响较大。
The synthesis of Rosacetol Roseme by use of phase transfer catalysis at different conditions is studied.
研究了利用相转移催化剂在不同条件下合成结晶玫瑰的工艺。
A variety of new chiral phase transfer catalysts have emerged to this area and added the new vitality to it.
各种新的手性相转移催化剂不断涌现，给这一领域的研究增加了新的活力。
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。
Polyethylene glycol 600 showed good phase transfer catalytic effect; the yield after purification was above 89%.
聚乙二醇600的相转移催化作用明显，精制后产品收率在89%以上。
Ultrasound may replace phase transfer catalysts in phase transfer catalysis reactions and facilitate the reaction.
在相转移催化反应体系中，超声能够取代相转移催化剂，使反应顺利进行。
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。
Their phase transfer catalytic ability for the reaction of N-alkylation, O-alkylation and oxidation were also determined.
测定了其对氧烷基化反应、氮烷基化反应的相转移催化作用。
These catalytic mechanisms of interfacial agent in some chemical reactions are micelle catalysis and phase transfer catalysis.
表面活性剂催化化学反应过程的机理有胶束催化和相转移催化。
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 mechanism of the reaction and that of phase transfer catalysis were studied. The process parameters were selected by optimum experiment.
对反应合成、相转移催化机理和合成工艺进行了研究和实验探索，经条件优化实验确定了较佳的合成工艺参数。
Two kinds of useful selenoxide reagents are synthesized via the oxidation of selenides by CAN under the condition of phase transfer catalysis.
采用CAN作氧化剂，在相转移催化条件下高产率地合成了具有重要价值的有机合成中间体苯苄亚硒砜和苄基亚硒砜。
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。
It is shown that these polymers have very high complexing capacities with potassium and sodium ions and have good phase transfer catalysis activity.
结果表明，这类聚合物冠醚对钠、钾离子有很强的络合能力，并有良好的相转移催化活性。
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。
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。
Crystallization from solution is a complex multi-phase transfer process of heat and mass, in which the composition of solvent plays a very important role.
溶液结晶是一个比较复杂的多相传热、传质过程，溶剂组成在其中起着重要的作用。
Crystallization from solution is a complex multi-phase transfer process of heat and mass, in which the composition of solvent plays a very important role.
溶液结晶是一个比较复杂的多相传热、传质过程，溶剂组成在其中起着重要的作用。
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