酰化

On the basis of these studies, sensitive and rapid determination methods of AM and MA in urine by gas chromatography with electron-capture detection combined with various acyl derivatization were developed.

在此基础上，建立了人尿中苯丙胺和甲基苯丙胺的酰基衍生化的气相色谱－电子捕获检测分析方法。

The originalprocedure has subsequently been replaced by milder and more environmentallyfriendly conditions. We tried to alkylate 3,4,5-trimethoxytoluene by2-allylphenylbenzyl ether in the presence of N-bromosuccinimide.

本实验是在溴代琥珀酰亚胺的作用下使2-烯丙基苯基苄基醚产生苄正离子，苄正离子亲电进攻3，4，5-三甲氧基甲苯从而进行傅氏烷基化反应的。

Objective To determine the risk of sustained amenorrhea in premenopausal women with systemic lupus erythematosus receiving intermittent pulse cyclophosphamide therapy.

环磷酰胺是临床最常应用的烷化剂，在对由免疫介导的风湿病、肾病、神经系统疾病及血液病等疾病的治疗中，疗效肯定。

The effect of content of water on the yield of 2-phenylbenzamide by using sodium amide to cleave fluorenone was studied.

研究了水分含量对氨基化钠裂解芴酮制备2-苯基苯甲酰胺收率的影响。

Meanwhile,the efficiency of aniline,a useful concept,was proposed to evaluate the reactive extrusion process.

同时，首次提出了SMA熔融酰亚胺化反应挤出过程中的苯胺有效利用率概念。

Methods Starting from anisole, liarozole was synthesized by Friedel-Crafts acylation, nitration, nucleophilic substitution, reduction and cyclization.

以苯甲醚为起始原料，经傅克酰基化、硝化、取代、还原、环合等7步反应得到目标化合物利阿唑。

Based on the possible degradation products, Microbial degradation pathways of metsulfuron-methyl is concluded as follows: after the cleavage of the sulfonylurea bridge, 2-amino-4-methoxy-6-methyl-triazine is demethylated and the annularity reaction of sulphanilamide occurs.

甲磺隆主要降解途径首先是脲桥的断裂，然后6-甲氧基-4-甲基-2-氨基-三氮嗪进一步脱甲基，而磺酰胺类物质将进一步脱氨基环化。

Photoreactions of 8 with 15-19, on the other hand, furnished the corresponding [2+2] cyclobutane products and the annulation products together.

二氯马来酰亚胺（8）与15—19的光化反应中则分别得到相应[2+2]的环丁烷产物和增环产物，在与19的反应中，还得到由环丁烷产物脱氯化氢后得到的环丁烯开环的二烯产物。

Compared with aurum, palladium and platinum as seeds, Silver is much cheaper and lower pollutional and can also activate electroless plating, although it is still rarely investigated.

我们采用激光诱导化学镀技术在聚酰亚(来源：ABC论文1313网www.abclunwen.com)胺薄膜表面上用四种方法选择性沉积金属银作为活化种，然后进行化学镀从而在聚酰亚胺表面上沉积上图形化的铜镀层。

This indicated that, with the different pH values in solution, the adsorption site of biliverdin could be changed.

在酸性溶液中，胆绿素分子环C上的氮原子和内酰胺环A上的氧原子发生了质子化。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。