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- Similarly, using diketene to replace mixed anhydride or acid chloride, intermediate enol 5 may be obtained. 而由混合酸酐或双烯酮代替酰氯，中间体也可能是烯酮或烯醇5。
- Cyclic carbonate, Amine aldehyde, keto, activated olefinic bond, N-alkoyl, acid, anydride, acid chloride, acetoacetoxy. 环碳酸酯，胺醛，酮，活性烯键的N alkoyl，酸，anydride，酰氯，乙酰乙酸。
- A silica supported cyanoethylated soluble protein-Pd was prepared and its activity in catalyzing the cross-coupling reaction of organotin reagent and acid chloride was studied. 制备了以超细二氧化硅为载体的氰乙基化可溶性蛋白质 -钯催化剂 ,研究了它在有机锡烷和酰氯化合物的偶联反应中的催化行为。
- The first step was to protect the amino group of Tris by using t-butyloxycarbonyl anhydride((Boc)2O),then mPEG was activated by changing hydroxide terminal into acid chloride and carboxylation of mPEG was fulfilled before. 利用叔丁氧羰基酸酐((Boc)2O)对Tris上的氨基进行保护,对mPEG端羟基依次进行羧基化、酰氯化等活化处理,通过酰氯与羟基的官能团反应合成出目标分子。
- Acylation by acid chloride or acid anhydride and DCC methods were involved in the preparaion to avoid the tedious operation of isolation, because the pure compound could be prepared by the routine crystallization. 为避免各步反应产物不易分离带来的麻烦,分别用酰氯法、酸酐法和DCC法合成这些化合物,用常规结晶方法即可精制产物。
- Storage-stable, liquid carbodiimide-modified MDI are prepared in the presence of catalyst and terminated by means of different deactivatore such as CP and acid chloride in industry. 针对目前工业生产的碳化二亚胺改性高效液化MDI所使用的催化剂和各失活剂的作用机理进行了研究,并对失活剂的稳定性能进行了对比。
- In this article,the mechanism and the methods used for the reduction of carboxylic acids,esters,amides,acid chloride,amino acids and the... 介绍了硼氢化钠还原羧酸及其衍生物的机理,综述了硼氢化钠在羧酸、羧酸酯、酰胺、酰氯和氨基酸及其衍生物还原中的应用。
- Some problems in acid chloride zinc plating process 浅谈氯化物镀锌生产中的几个问题
- Keywords Maleopimaric acid;Acid chloride;Bisamide; 马来海松酸;酰氯;双酰胺;
- di-imide dicarboxylic acid chloride 二元亚胺二酰氯
- The catalytic action of cellulose oxyphosphine palladium complexs in the crosscoupling reaction of organotin reagents with acid chlorides for forming C-C bond is presented. 报道了纤维素氧膦-钯配合物在有机锡试剂与酰氯化合物形成碳-碳键的交叉偶联反应中的催化作用,并对部分反应条件及反应机理进行了研究和探讨。
- Preparation and Application of Isocyanuric Acid Chloride Products 氯代异氰脲酸类产品的制备和应用
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- An Acid Chloride Electrolyte for Zinc Cobalt Deposition 酸性氯化物Zn-Co合金电镀
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- The cellulose oxyphosphine palladium complex catalyst was prepared and the catalytic activity of catalyst in the cross - coupling reaction of tributyltin hydride with acid chlorides was investigated. 制备了纤维素氧瞵-钯配合物催化剂,详细考察了催化剂对三(正)丁基锡氢化物和酰卤化合物偶联反应的催化作用。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
