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The originalprocedure has subsequently been replaced by milder and more environmentallyfriendly conditions.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。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。