reaction intermediate的例句大全

The present status of the theoretical study of intermediate, transition state and reaction path of organic reaction

有机化学反应中间体、过渡态及反应途径的理论研究现状

Extensive electrochemistry and surface science researches have demonstrated that small Pt ensembles could facilitate the direct reaction path in formic acid electrooxidation, while the formation of CO poisoning intermediate need much larger Pt ensembles.

大量电化学和表面科学的研究证明较小的铂原子有利于甲酸通过直接氧化路径进行反应，而产生一氧化碳中毒产物则需要较大的铂原子组合。

THE INTERMEDIATE OF CROSSLINKING REACTION BETWEEN WOOD AND POLYCARBOXYLIC ACIDI. Space Effect and Chemical Structure of Polycarboxylic Acid

多元羧酸与木材交联作用的反应中间体I.多元羧酸的空间效应和化学结构

The reaction mechanism of di-n-butyl sulfide is investigated, and the key step of cracking reaction is the rupture of C-S bond to yield thiol-like intermediate in the cracking course of alkyl-sulfide compounds.

在丁硫醚的反应历程中，碳硫键的断裂生成类硫醇物种的一步是其裂解关键步骤。

Medicine intermediate N-ethylethylenediamine ( NEED) was synthesized from acrylamide and ethylamine by addition reaction and Hofmann rearrangement.

以丙烯酰胺为起始原料，经乙胺加成后，再经Hofmann重排两步反应后合成了药物中间体N-乙基乙二胺（NEED）。

The so called "synergistic effect" was caused by directional transfer of intermediate compounds from Y zeolite to H~ zeolite, resulting in enhanced activity and isomerization reaction simultaneously.

其中Y型分子筛和Hβ沸石之间具有仂、同作用，结果是催化剂活性和异构性能同时提高，原因可能是反应中间产物存在由HY向Hβ沸石的定向迁移现象。

Theoretical correction on measuring neutron dose equivalent for the intermediate energy heavy ion reaction with the 10-in single-sphere rem-meter

10-in单球rem计测量中能重离子反应中子剂量当量的理论修正

Iso-butene and methanol etherification proceeds according to the electrophilic addition mechanism, Iso-butene makes protonation reaction as the proton acceptor under the acid catalyst function, being born the positive carbon ion, intermediate products react rapidly with nucleophilic reagent ( CH3O-) to produce MTBE.

异丁烯在酸性催化剂作用下作为质子的接受体发生质子化反应，生成正碳离子；作为中间产物的正碳离子，再迅速同亲核试剂CH3O-反应，生成MTBE。

As an intermediate for COX-2 inhibiters, 4-( methylthio) benzeneacetic acid(ⅳ) was prepared via Friedel-Crafts and Willgerodt-Kindler reaction from thioanisole(ⅰ).

以茴香硫醚（Ⅰ）为原料，经Friedel-Crafts酰基化、Willgerodt-Kindler反应合成了COX-2抑制剂的中间体4-甲硫基苯乙酸（Ⅳ）。

Nucleophilic substitution of 3-amino-1,2,4-triazole with picryl chloride is reported. The relevant intermediate was separated, its structure determined and the possible reaction mechanism suggested.

测定了3－氨基－1，2，4－三唑参与的亲核取代反应动力学，并对相应中间体进行了分离和结构测定，给出了相应的反应历程。

5,6-Bis ( bromomethyl) benzimidazole is an important intermediate for making heterocyclic of [ 60] fullerene derivatives in Diels Alder reaction.

5,6-二溴甲基苯并咪唑是Diels-Alder环加成反应形成含杂原子的C60衍生物的重要中间体。

The very important pharmaceutical intermediate p-fluoro-α-methylstyrene was synthesized using fluorobenzene, bromine and acetone as raw materials via bromination, Grignard reaction and dehydration.

以氟苯、溴和丙酮为原料，通过溴代反应、Grignard反应，再经脱水反应制得医药中间体对氟α-甲基苯乙烯。

So this paper proposes a synthetic method for the cage-type compounds, which is based on the oriented intermediate, and then synthesize the target product by Mannich reaction.

故本论文提出的笼型化合物3,5,12-三烷基-3,5,12-三氮杂异伍尔兹烷的合成思路是以合成具有导向性的中间底物为基础，进而采用曼尼希法来获得目标产物。

in the new process, the intermediate need not to separate from the reaction solution. the continuous process avoids the fluctuation which is unavoidable with the batch procedure. the total yield is more than 90% and purity of acetochlor technical can reach 96%.

研讨一种连续合成乙草胺工艺，新工艺中间体不经分离直接继续反应，连续工艺避免了间歇过程中不可避免的一些不稳定情况，总收率大于90%，乙草胺原药含量能达到96%。

the target products were characterized by' h-nmr, 13c-nmr and ms. in addition, a one-pot reaction was used in the two steps of sulfonation and nitration, which reduced the amount of reagent, reaction time and the loss of the intermediate product.

化合物的结构通过1H-NMR、13C-NMR及MS进行了表征确认。该路线中磺化和硝化两步反应采用了一锅法，减少了试剂用量，缩短了反应时间，并减少了中间产物在处理过程中的损失。

ethyl 2-( 4-bromomethylphenyl) propionate, key intermediate of loxoprofen, was synthesized from toluene via friedel-crafts reaction and bromination.

以甲苯为原料，对甲苯磺酰乳酸乙酯为Friedel-Crafts烷基化试剂，N-溴代丁二酰亚胺为溴化剂，合成了洛索洛芬的关键中间体&2-（4-溴甲基苯基）丙酸乙酯。

the results of hplc detection showed the presence of an intermediate, indicating that the reaction was conducted through an indirect two-step reaction.

高效液相检测结果显示该反应存在中间体，可能是一个由两步反应组成的间接反应。

in triple state, this reaction proceeds directly without forming an intermediate.

在三态势能面上，反应未经中间体直接进行。

Medicine intermediate N-ethylethylenediamine ( NEED ) was synthesized from acrylamide and ethylamine by addition reaction and Hofmann rearrangement.

以丙烯酰胺为起始原料,经乙胺加成后,再经Hofmann重排两步反应后合成了药物中间体N - 乙基乙二胺 ( NEED ).

The intermediate diffusion problems at a micro disk electrode for any degree electrochemical reaction are reconsidered.

研究微盘电极上中等扫速下,准可逆电化学反应的伏安行为.