Application of propiophenone rearrangement by 1,2-aryl shift in poly[styrene(iodosodiacetate)];
聚苯乙烯二醋酸碘苯在芳丙酮1,2-芳基迁移重排反应中的应用
Montmorillonite K-10 Catalysed Some Dehydration-rearrangements;
关于蒙脱土K-10催化的烯丙醇脱水重排和二烯-酮-酚重排机理探讨
Catalytical Rearrangement of 1,6-Dihydro-S-tetrazine with Isocyanate;
1,6-二氢-S-四嗪与异氰酸酯催化重排反应的研究
Time-Frequency Reassignment Method and its Application in Pipeline Guided-wave Signals Processing;
时频重排方法在管道导波信号处理中的应用
Blind parameters extraction of frequency-hopping signals based on reassignment SPWVD;
基于重排SPWVD的跳频信号参数提取方法
The reassignment method has been proved to produce a better localization of the signal components and to improve the readability of the time-frequency representation(TFR) by concentrating its energy at a center of gravity.
重排方法通过将代表信号局部能量分布的几何中心重排到其质量中心,从而提高时频表示的聚集性和可读性,但是并没有完全消除交叉项。
Progress in study of Fries rearrangement reaction catalysts;
Fries重排反应催化剂的研究进展
Preparation of o-hydroxybutyrophenone by Fries rearrangement of phenyl butyrate;
丁酸苯酯Fries重排制备o-羟基苯丁酮
Using the inclusion action of β-Cyclodextrin with phenyl acetate,2-Hydroxy-acetophenone was Synthesized via Fries rearrangement reaction.
利用β-环糊精对底物的包络作用,经由Fries重排反应选择性合成了邻羟基苯乙酮。
Pinacol rearrangement in CO_2 enriched high temperature liquid water;
CO_2-高温液态水介质中的频那醇重排反应
Kinetics of pinacol rearrangement in high temperature liquid water;
高温液态水中的频那醇重排反应动力学
Study on rearrangement of semipinacone and cycloheptane cation with ab initio method;
半片呐醇和环庚烷正离子重排反应的从头算研究
2-Arylglutarates with high yields(73%~87%) were prepared by addition-rearrangement reactions of phenylsulfonylacetates containing 4-nitro or 2-nitro with α,β-unsaturated esters under K2CO3-TEBA phase transfer catalyst conditions.
在K2CO3-TEBA相转移催化体系中,4位或2位含有—NO2的苯磺酰基乙酸酯与α,β-不饱和酯发生加成-重排反应,制得2-芳基戊二酸酯,其收率较高(73%~87%)。
The transition-states of rearrangement reaction of the stable structure of F 2CCLiBr have been determined, and the potential barriers of rearrangement reactions have been obtained at B3LYP/6-31G(d,p) level.
对稳定的平衡结构 ,找到了其可能的重排反应过渡态 ,根据计算得到的重排反应势垒 ,解释了氟原子只从溴原子对位发生迁移的原因 。
The GC/MS analyses for alkanes from Late Jurassic source rocks of the Liudong depression,Kailu Basin,northeastern China showed that the concentration of diasteranes in some samples decreases anomalously with depth,suggesting that in this case the formation of these compounds may be not depended on maturity.
陆东凹陷上侏罗统生油岩样品饱和烃色质分析表明,重排甾烷随井深出现含量下降的逆转现象,表明热演化不完全是这类化合物形成的主要控制因素。
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