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。
Polymer phase transfer catalyst was a good catalyst.
高分子相转移催化剂是一种良好的催化剂。
The phase transfer catalyst Ql can be repeatedly used.
相转移催化剂可反复使用。
Polyvinyl chloride-polyethylene polyamine resin is a new polymer phase transfer catalyst.
它是一种新型的高分子相转移催化剂。
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。
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。
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。
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。
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 synthesis of benzyl-2-naphthyl ether by the reaction of 2-naphthol and benzyl chloride using phase transfer catalyst Bu_4NBr was studied.
为了探索香料苄基-2-萘基醚的合成方法，通过对催化剂的改进和利用超声波技术改善催化条件，使苄基-2-萘基醚的合成过程向绿色化靠近。
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。
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。
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。
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。
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。
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。
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 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。
Soybean sucrose polyester was synthesized with soybean oil and sucrose catalyzed by phase-transfer catalyst of cetyltrimethylammonium bromide (CTAB) in two-step method.
以大豆油和蔗糖为原料，十六烷基三甲基溴化铵为相转移催化剂，采用两步法合成大豆油蔗糖多酯。
Soybean sucrose polyester was synthesized with soybean oil and sucrose catalyzed by phase-transfer catalyst of cetyltrimethylammonium bromide (CTAB) in two-step method.
以大豆油和蔗糖为原料，十六烷基三甲基溴化铵为相转移催化剂，采用两步法合成大豆油蔗糖多酯。
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