Preparation of Borohydride Anion Exchange Resin ( BER) and Reductions of Carbonyl Group and Acyl Chloride Compounds 硼氢阴离子交换树脂的制备及其对羰基、酰氯化合物的还原
Synthetic Study of Glycyl-Glycyl-Valine Tripeptide Using The Way of Acyl Chloride 酰氯法合成甘氨酰-甘氨酰-缬氨酸三肽的实验研究
Maltitol fatty acid ester was prepared with maltitol and fatty acyl chloride. 以麦芽糖醇和脂肪酰氯为主要原料合成麦芽糖醇脂肪酸酯。
Preliminary results indicate that many of acyl ureas exhibited higher activity on auxin, especially for those with chloride substituted on the phenyl ring. 生测结果表明:两个系列酰基脲化合物,均表现出一定程度的生长素活性。
N-acylation takes place from ester as acylating agent and amine, which avoids the reaction of esterolysis and chlorination. Compared to the former method using irritant acyl chloride as acylating agent, this new process shortens the reaction steps and avoids pollution. N-酰化反应,直接用酯作为酰化试剂与胺反应,代替了有强烈刺激性的酰氯,避免了酯的水解、氯化反应,既减少了反应步骤,又有利于清洁生产;
A series of N-long chain acyl glutamic acids were synthesized from acylating agents, such as lauroyl and palmitoyl chloride. The reaction mechanism, as well as the technology parmeters were studies so that an experiments reached 96%-98% k. 以月桂酰氯、棕榈酰氯为酰化剂合成N-长链酰基谷氨酸,研究了合成反应机理和工艺参数,确立了较适宜的产品制造工艺,放大试验结果为收率96%-98%。
Liposoluble tea polyphenols ( LTP) with varying aliphatic groups were synthesized by reaction of aliphatic acyl chloride and tea polyphenol ( TP). 通过脂肪酰氯与茶多酚(TP)的反应,制备出了一系列含不同直链脂肪基团的脂溶性茶多酚(LTP)。
Water is avoided to take with acyl chloride. 酰氯化物切忌带水。
Study on the Reduction of Acyl Chloride by Tributyltin Hydride on Pd/ C Catalyst 三丁基锡氢化物在Pd/C催化下还原酰氯的反应研究
The experimental results indicate that the average substitution degree of acylation of chitosan depends on volume ratio of pyridine to chloroform in the reaction medium, chain length of the acyl chloride, and molecular weight of the chitosan. 实验结果表明:壳聚糖的酰化取代度主要取决于反应介质吡啶/氯仿用量比、酰化试剂的链长和壳聚糖分子量。
Pyridine can improve the ability of acylation when it complex with acyl chloride. The theory yield is high but aftertreatment is difficult and real yield is very low. 吡啶既可做溶剂又可中和氯化氢,还可与酰氯形成络和物而增强酰化能力,理论产率很高,但后处理困难,实际产率反而很低。
The reaction of twenty kinds of Fmoc-AA-OH linked to Wang resin using methods of acyl chloride or active ester was studied in solid-phase peptide synthesis. 在多肽固相合成中,分别采用酰氯法和活化酯法,研究了20种Fmoc-氨基酸与Wang树脂的连接反应。
To seek a nicotinic derivative with effect, safety and less adverse effect, nicotinyl salicylic acid was synthesized from nicotinic acid with salicylic acid by employing the acyl chloride method. 为寻找降血脂作用强、不良反应轻、安全有效的烟酸衍生物,以烟酸和水杨酸为原料,采用酰氯法经过二步合成了烟酸的衍生物烟酰水杨酸。
Solid state polymerization of poly ( ethylene terephthalate) through acyl chloride method 聚对苯二甲酸乙二酯的酰氯法固态聚合
Synthesis of acyl azide from aldehyde, or acylhydrazine, or carboxylic acid, or acyl chloride, or anhydride, or ester is introduced in this paper. 介绍了由醛、酰肼、羧酸、酰氯、酐或酯合成酰基叠氮化合物方法。
For arginine, the yield was improved to nearly 80% by using weakly polar solvent such as DCM and simultaneously increasing the reaction time to 20 h in the method of acyl chloride. 在酰氯法中,对于精氨酸,选择弱极法溶剂如DCM,延长反应时间至20h,连接效率接近80%。
Pinonic acyl chloride was reacted with diethyl amine to synthesize N, N-diethyl-pinonic amide. 蒎酮酸经过酰氯化后再和二乙胺反应,合成了可能有生物活性的N,N-二乙基蒎酮酸酰胺。
The method of acyl chloride was better than the method of active ester for its high efficiency and convenient operation. 酰氯法反应速率快、操作简便,优于活化酯法。
Structural Determination of the By& Product in Preparing Acyl Urea by Reaction of Acyl Chloride with Lead Cyanate 由酰氯与氰酸铅制备酰基脲反应中副产物的结构测定
40 products are synthesized by the variation of modification parameters, which are the species of lignin, reaction ratios of Mannich Reaction and acylation, and the number of carbon atoms in aliphatic acyl chloride. 通过改变木质素的种类、酰化反应的投料比以及脂肪酰氯的碳链长度等参数,合成了40只不同的改性木质素磺酸盐产品。
The slower acyl chloride dropped, the higher the yield will be. 酰氯的滴加速度愈慢,产品的收率就愈高。
Peptides are traditionally synthesized in liquid phase, such methods are DCC, mixed anhydrides, acyl chloride and azide etc., which provide more choices for peptides synthesis. 传统的肽类合成多采用液相化学合成,常用的包括碳二亚胺(DCC)法,混合酸酐法、酰氯法、叠氮物法等等,为多肽的合成提供了多种选择。
For bitter acyl benzene hydrazine free radicals(· OH), crude extractings of petroleum ether layer, methylene chloride layer, ethyl acetate layer, acetone layer, methanol layer all represented the clearance of · DPPH. 对于二苯基苦味酰基苯肼自由基(·DPPH),石油醚层、二氯甲烷层、乙酸乙酯层、丙酮层、甲醇层粗提物均表现出对其有清除作用。
The optimal parameters of acyl chlorination were selected as follows: oxalyl chloride as acyl chloride reagent, DMF as catalyst, the yield was 90.7%. 酰氯化反应条件为:草酰氯为酰氯化试剂,DMF为催化剂,收率90.7%。