英语释义

1. formation of a ring in a chemical compound

2. formation of one or more rings in a chemical compound

片语

cyclization sequence环化序列

reductive cyclization翻译

Endo cyclization鲍德温规则

circularization通函询证；环化

Ruzicka cyclization鲁日奇卡大环合成

final cyclization后环合法

cyclization dynamic环化动力学

phosphorylation cyclization环磷酰反应

Bergman cyclizationThe Bergman cyclization or Bergman reaction or Bergman cycloaromatization is an organic reaction and more specifically a rearrangement reaction taking place when an enediyne is heated in presence of a suitable hydrogen donor (Scheme 1).p-Benzyne.

cyclization system环化系统

英汉例句

• by adjusting the reaction temperature or using different cyclization methods, condensation is carried out, and indanone dimmer and indanone trimer can be obtained respectively.

  然后进行缩合，通过调节反应温度或者使用不 同的环化方法，可分别得到茚酮的二聚物及三聚物。

• a possible mechanism for the cyclization reaction was suggested.

  提出了可能的环化反应机理。

• it was found that amide-group (conh2) drastically promoted the activity of the cyclization of the molecular chains.

  酰胺基（-conh2）对分子链的环化起到催化促进作用；

• cyclization occurs readily with dilute alkali .

  遇到稀堿就容易环化。

• it is devoted to develop a scientific methodology based on first principles to deal with radical cyclization reactions.

  发展基于第一性原理的科学计算方法并将其用于自由基环合反应。

• screening for 2 - bromo-butyric acid as the starting material, after ammonolysis, esterification, ester amine solution, split, five-step cyclization reaction levetiracetam.

  筛选以2-溴代丁酸为起始原料，经氨解，酯化，酯胺解，拆分，环合五步反应制得左乙拉西坦。

• the mechanism of cyclization of dat and the principle of the anion extraction were also discussed.

  同时，探讨了dat的成环反应历程，阐述了阴离子高效萃取的原理。

• that is dehydrogenation and cyclization of paraffins, dehydrogenation and aromatization of naphthenes, and cracking reaction to form c 5 lighter products.

  集总组分之间主要发生烷烃脱氢环化、环烷烃脱氢芳构化和加氢裂化反应。

• the recent development about applications of ionic liquids(ils) to transition metal -catalyzed cyclization of alkyne and enyne compounds was introduced.

  概述了离子液体在过渡金属催化炔及烯炔类化合物环合反应中应用研究进展。

• synthesis of coumarin-3-carboxylic acid through sodium ethoxide catalyzed synthesis of coumarin -3-carboxylic acid ethyl ester, followed by saponification, acidolysis cyclization was studied.

  实验以水杨醛、丙二酸二乙酯为原料，乙醇钠为催化剂催化合成香豆素-3-羧酸乙酯，再经皂化、酸解环合合成香豆素-3-羧酸。

• hnmr spectra of cyclized sbr was analysed and the equations to calculate the cyclization degree and the incorporated solvent content by 1hnmr method were derived.

  对环化丁苯橡胶的1h 核磁共振谱进行了归属分析，并推导出计算环化度和溶剂参与量的公式。

• the influence of different metal ions on the cyclization of two different linear heptapeptides was studied.

  首次系统地研究了不同金属离子对两个结构不同的线型七肽环化反应的影响。

• the occurrence of sbr cyclization was confirmed by the primary analysis of ir and 1 h-nmr spectra.

  通过对红外光谱、1h-nmr谱的初步解析，证实了环化反应的发生。

• in another direction, the radical cyclization of thioimide with acylsilane produced simple cyclization product in low yield without expected enol silyl ether compound.

  对于硫醯亚胺与硅基酮的自由基反应，则是得到低产率的简单环化产物，而不是预期的烯醇硅醚化合物。

• the anticancer medicine imatinib mesylate was synthesized through steps composed of condensation, reduction and cyclization reaction using 4-methyl-3-nitroaniline as raw material.

  以4-甲基-3-硝基苯胺为起始原料，经过缩合、还原、环合等反应制得抗肿瘤药物甲磺酸伊马替尼。

• the cracking and skeletal isomerization became more strong with the rise of reaction temperature, while oligomerization, cyclization and hydrogen transfer reaction became weaker.

  随着反应温度的提高，裂化反应和骨架异构化反应增强，但齐聚反应、氢转移反应和环化反应减弱。

• the conditions of reaction of cyclization were moderate, the purity and yield of the product was higher.

  环合反应的条件缓和，产品收率和纯度高，在四氢咔唑类化合物的化学制备中具有重要参考价值。

• this paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

  讨论了以草酸二乙酯为原料，经过克莱森缩合、环合、氨解反应合成5 甲基异唑3甲酰胺工艺的改进。

• with p-methylbenzonitrile as starting material, the fluorescent bleaching agent bisbenzoxazole diphenylethene (ob-1) was synthesized by chlorination, cyclization and condensation.

  以对甲苯甲腈为原料，经氯化、环化、缩合三步反应合成了荧光增白剂双苯并恶唑二苯乙烯（ob-1）。

• the appropriate reaction conditions of cyclization reaction: naoet was 1.4 mole eq.

  合环反应的条件为：乙醇钠的用量为1.4摩尔当量；