查询词典 rearrangement

The paper reviews the progress of ionic liquids as microwave mediums or catalysts in the fields of organic synthesis, mainly including cyclization, nucleophilic substitution, ring closing metathesis, acylation, rearrangement, polymerization, coupling, oxidation and reduction as well as selective debromination, etc.

本文综述了以离子液体为反应介质或催化剂的微波辅助技术在多种类型有机反应中的研究成果，主要包括了环合反应、亲核取代反应、金属复分解反应、酰化反应、重排反应、聚合反应、偶联反应、氧化还原反应和选择性脱溴反应等。

Seven 1-phenyl-(4-pyridinyl)acetylene derivatives were conveniently synthesized in this paper using corresponding styrylpyridines as starting materials by bromination, rearrangement and debromination.

本文采用简单易行的方法从苯乙烯基吡啶类衍生物通过溴化、重排和脱溴化反应合成了7种苯乙炔基吡啶类单体，研究了它们在1mol/L盐酸水溶液中的光环加成反应。

Chapter 3 discusses the fundamentals inequalities in the rearrangement invariant martingale space, such as the corresponding important Doob"s maximal inequality, Burkholder-Gundy-Davis inequality and Rosenthal"s inequality.

第三章讨论重排不变鞅空间中的基本不等式，包括Doob极大不等式、Burkholder-Gundy-Davis不等式和Rosenthal不等式。

We prove the corresponding Doob"s maximal inequality, Burkholder-Gundy-Davis inequality, the greater-smaller operator inequality and Rosenthal"s inequality in the framework of rearrangement invariant martingale space on finite interval.

包括重排不变鞅空间及其中的Doob极大不等式，Burkholder-Gundy-Davis不等式，上、下不等式，Rosenthal不等式等。

II. Oxidation of α,β-Unsaturated Ketones with Hypervalent Iodine Reagent Literatures reported that lead acetate-borontrifluoride etherate (LTA/BF3-Et2O) can transform α,β-unsaturated ketone to β,γ-unsaturated carboxylic acid ester through an one-step oxidative rearrangement reaction. Our research along this line indicated that hypervalent iodine reagents can also affect the same reaction.

II。 高价碘对α，β-不饱和酮之氧化研究先前已有文献指出用leadacetate-borontrifluoride etherate (LTA/BF3-Et2O)做氧化剂，可以经由一步的重组氧化反应把α，β-不饱和酮(α，β-unsaturated ketones)氧化成β，γ-不饱和碳酸酯(β，γ-unsaturated carboxylic acid esters)衍生物。

Molecular rearrangement reaction occurs during the foaming and post-treatment forming hexahydric imide ring. The prepared PMI foams have closed cell structure with the cell size ranging from 0.5mm to 0.7mm and have a good thermostability with the characteristic degradation temperature at about 221.5℃.

在发泡和热处理过程中分子链发生分子重排反应，生成六元酰亚胺环结构；PMI泡沫为闭孔泡沫塑料，泡孔平均孔径在0.5~0.7mm之间；制得的泡沫塑料热稳定性好，热分解温度在221.5℃左右。

Histiocytic disorders ; malignant ; Polymerase chain reaction ; Receptor ; antigen ; T-cell ; Gene rearrangement

组织细胞增生症；恶性；聚合酶链反应；受体；抗原； T细胞；基因重排

It is Formed of China, Japan, Singapore three countries, The rearrangement of assets in 2003,It Cooperated by Wuhan Architecture Design Institute and IAO Takeda Architects Associates.

原由中国、日本、新加坡三国设计机构有机合成，2003年资产重组，由武汉建筑设计院与日本株式会社 IAO 竹田设计合作组建。

Beckmann rearrangement reaction is that amide is formed by ketoxime under the condition of acid catalyzer.

酮肟在酸性催化剂作用下，生成酰胺的反应称为&贝克曼重排反应&。

Result: At beginning of disease All of 33 patientsbone marrow express lympho -linge immunophenotype ,At least one of IgH and TCR gene rearrangement were detected in 29/33.after induction theray and during weeks 12, 24 ,36 of continuation therapy,by FCM ,the detectable rates of patients with MRD are 42%.

初诊时FCM检测33例患者骨髓均有淋巴系分化抗原表达，PCR检测29例至少存在IgH、TCR一种基因重排。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。