片语

phase-transfer catalyst AOTAOT相转移催化剂

Solvent regulated phase-transfer catalyst溶剂控制相转移催化剂

phase transfer catalyst ptc相转移催化剂

amphiphilic phase-transfer catalyst双亲相转移催化剂

phase transfer catalyst film相转移催化剂膜

reaction-controlled phase-transfer catalyst反应控制相转移催化剂

polymer phase-transfer catalyst高分子相转移催化剂

英汉例句

• 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。

• in the condensation reaction, a phase transfer catalyst was used. the optimum experimental condition was obtained by using orthogonal experimental design.

  在缩合反应中使用相转移催化剂，通过正交试验找到了最佳反应条件；

• with phase transfer catalyst method, the oligomerswas obtained and transformed to monovinylpolyethersulfones macromer. its structure was characterized with ir and 1h-nmr.

  用相转移催化剂法成功地将单酚转化为单烯大分子单体，并用ir、1h—nmr对其结构进行了表征；

• 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。

• the synthesis of 6-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。

• 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 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。

• 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。

• asymmetric synthesis using chiral phase transfer catalyst is a new method that has just been developed in late years.

  利用手性季铵盐作为相转移催化剂进行不对称合成是近年来刚刚发展起来的一种新的不对称合成方法。

• litsea cubeba oil reacted with hydroxylamine sulfate to give citral oxime, which by dehydration with acetic anhydride in the presence of phase transfer catalyst gave lemonile.

  用山苍子油直接同硫酸羟胺反应生成柠檬肟，再加入乙酐和相转移催化剂脱水得到柠檬腈。

• we use the phase transfer catalyst to prepare dpdtt: tetrabutylammonium hydrogen sulfate ( tbas) as phase-transfer agent.

  最后利用相转移催化剂法，b在相转移催化剂四正丁基硫酸氢铵的催化下反应生成目标产物dpdtt。

• the p-tolyl benzyl ether was synthesized by the reaction ofp-cresol and benzyl chloride with phase transfer catalyst tbab under microwave irradiation.

  在相转移催化剂作用下，以氯化芐和对甲苯酚为主要原料，通过微波辐射合成对甲苯基芐基醚。

• 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。

• 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。

• 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。