查询词典 Beckmann rearrangement

of determination of cyclohexanone oxime concentration in esters gained in liquid phase Beckmann rearrangement is set up in the paper, which is a basis of the above reaction kinetics.

本文建立了己内酰胺液相重排反应转位酯中环己酮肟含量的测定方法，为环己酮肟液相重排反应动力学的研究奠定了基础。

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&。

The reactions include, organometallic reactions (grignard reaction, organolithium -zinc, and -copper chemistry ), metal catalyzed reactions, mannich reaction, nitration, hydrogenation, azidation, amino-protection reactions, organoalluminum catalyzed beckmann rearrangement, schmidt rearrangement, epoxidation, epoxide ring opening reactions, swern oxidation etc.

这些反应包括：有机金属反应(格利亚反应，有机锂，有机锌和有机铜反应)，金属催化反应堆(suzuki 反应， negish 反应)， mannish 反应，硝化反应，氢化反应，叠氮反应，各种基团的保护和脱保护反应，有机铝催化的贝克曼重排反应，斯密特重排反应，环氧化反应，环氧烷开环反应， swern 氧化反应等。

The Beckmann rearrangement of Oxim is an important process during the production of caprolactam. It plays an important role in the yield and quality of the production.

环己酮肟贝克曼重排是己内酰胺生产过程中的一个重要反应步骤，重排反应的好坏直接影响到己内酰胺的产量和质量。

Because the kinetics of Beckmann rearrangement is very complicated and the reaction speed is very fast, the realization of its reaction kinetics is very variant.

由于贝克曼重排反应的机理非常复杂，而且该反应速率极快，因此对其机理的认识很不一致。

The rearrangement reaction of Oxim is a typical Beckmann rearrangement reaction.

环己酮肟重排反应是一典型的贝克曼重排反应。

Part Four: Attempt of the Abnormal Beckmann Rearrangement to the Synthesis of Indole Alkaloids Indole alkaloid is one of the most significant important alkaloid and its synthesis is a continuing interesting work.

Scheme 3 〓四、手性吲哚类生物碱的合成初探手性吲哚类生物碱是一类具有重要生物活性的生物碱，它们的合成研究是有机化学家持续感兴趣的课题。

The Beckmann rearrangement of cyclohexanone oxime, phosphorus pentoxide (P_2O_5) and dimethyl formamide raction system into caprolactam was studied.

研究了以环己酮肟、五氧化二磷(P_2O_5)、二甲基甲酰胺组成的反应体系进行Beckmann重排制备己内酰胺工艺，考察了不同溶剂、催化剂用量、温度、浓度及水分含量对重排反应的影响。

Beckmann rearrangement of several ketoximes.

3室温离子液体中酮肟的Beckmann重排。

Room-temperature ionic liquids; Synthesize; Spectra; Characterize; Beckmann rearrangement

工程科技I，化学，有机化学离子液体；合成；光谱；表征； Beckmann重排反应

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。