氨基化

A series of UV curable waterborne hyperbranched polyester s with different acid/amine terminal rate,which contained -OH?-COOH and methacrylic chain end groups,and were partly neutralized with thertiary amine,were synthesized from trimellitic anhydride,epichlorohydrin,glycidyl methacrylate and triethylamine.

以偏苯三酸酐、环氧氯丙烷、甲基丙烯酸缩水甘油酯、三乙胺合成了末端羧基与氨基不同比例的一系列可UV固化的高支化聚酯，研究了末端官能团对合成产物水溶性、粘度以及凝胶转化率的影响。

Triphenylmethyl chloride can react selectively with the 30-hydroxil group of glycyrrhetol under the catalyzing effects of three ethyl amine and dimethyl amino-pyridine.This condition of the reaction has an important value for the selective protection of 30-hydroxil group of glycyrrhetol.

三苯氯甲烷在三乙胺和二甲氨基吡啶等碱性催化下与甘草萜醇的C30-位羟基进行选择性缩合反应，此反应产率较与C3-位羟基化反应的要高，此种反应条件在甘草萜醇C30-位羟基的选择性保护中具有重要的价值。

Finally, the remaining amine groups are acetylated to ensure that the complex particles do not bear any surface charges.

最后，科学家将剩余的氨基进行乙酰化，这保证了复杂粒子不会受到表面电荷影响。

The title compound used as an amino acetylating reagent was further reacted to yield Cefepime hydrochloric acid, the crystals obtained has white pale color and is stable to temperature, and has no E-isomer too.

用其作为氨基酰基化试剂进一步合成盐酸头孢吡肟，也得到基本上白色的对温度稳定的不含E-异构体的晶态化合物。

It is shown that the optimal conditions for the reaction of CADB with SESA are pH 12.0 and m:m=6:1.The product p-aminobenzart sulfanily ethyl CADBwas diazotized and linked with lipase.The optimal pH for lipase linked to diao-compound is 7.5.The link time is at last 12h.

试验结果表明：CADB与SESA反应的最适条件是pH＝12.0，SESA与CADB质量比为6：1，反应生成的对氨基苯磺酰乙基交联烯丙基葡聚糖凝胶经重氮化后与脂肪酶偶联的最适条件是pH7.5，偶联时间≥12h。

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6～58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1，3，4-噻二唑用亚硝酰硫酸进行重氮化，再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1，3，4-噻二唑类化合物，其中16个为新化合物，收率为19.6～58.8％。

To study the technology used for brewing bifidobeer fermented by Bifidobacterium bifidum and Saccharomyces cerevisiae,Australia malt is sprinkled and milled.Wort is prepared by lixiviated saccharification,filtered,hops added,boiled and co-fermented by Bifidobacterium bifutum and Saccharomyces cerevisiae,and followed by antisepsis and centrifugation.

采用增湿法粉碎澳大利亚麦芽，麦皮破而不碎，麦粉较细，干法粉碎大米成细粉；选用双醪浸出糖化法进行麦汁制备、过滤、添加酒花和麦汁煮沸，麦汁呈黄色、澄清，可发酵糖和α-氨基氮的含量符合发酵要求；利用双歧杆菌和酿酒酵母共同发酵啤酒，消毒灭菌和低温离心后进行灌装；通过几项重要指标的检测，进行评判啤酒的质量和性能。

In this article,a non-carcinogenic dye intermediate 4-aminodianiline-2-sulfonic acid is synthesized from 4-nitro-1-chlorobenzen through sulfonation,condensation and reduction.

针对联苯胺作为合成染料的重要中间体已被确认为致癌物的情况，以对硝基氯苯为原料，经磺化、缩合、还原，合成了一种无致癌性并取代联苯胺的双胺化合物染料中间体4-氨基二苯胺-2-磺酸，利用红外光谱、差热和氢谱核磁对其性质进行了表征。

The synthetic procedure consists of three steps: the preparation of magnetic silica microbeads by polymer templating method; coupling of iminodiacetic acid with a bifunctional silane agent 3-glycidoxypro-pyltrimethoxysilane; charging the magnetic support with Cu(superscript 2+) With bovine serum albumin as a model compound, the adsorption behavior of protein on the magnetic matrix was studied.

采用模板法制备的单分散磁性硅胶微球，经过表面修饰偶联上亚氨基二乙酸，与过渡金属离子Cu(上标 2+)螯合，制成一种新型的磁性固定化金属亲和纯化载体。

A new organic compound:N,N'-bis(1,10-phenanthroline-2-formacyl)-4,4'-diamino-diphenylmethane was synthesized via oxidation,esterification,substitution,hydrolysis, amidation of 1,10-phenanthroline as the starting material with chemical reagents (hydrogen peroxide,benzoyl chloride,potassium cyanide,sodium hydroxide solution,4,4'-diamino-diphenylmethane).

以邻菲啰啉为起始原料，与双氧水反应合成邻菲啰啉-N-氧化物，接着与苯甲酰氯、氰化钾、NaOH水溶液一一反应合成中间体邻菲啰啉-2-甲酸，再与4，4′-二氨基苯基甲烷进行酰胺化反应合成目标产物。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。