利用本方法研究乙酸乙酯皂化反应和蔗糖水解反应体系,实验结果验证了本方法的准确性。
The saponification of ethyl acetate and the hydrolysis reaction system of sucrose have been studied, the accuracy of this method is verified by the experimental re.
该方法基本原理是:植物水解酶促进乙酸萘酯分解生成乙酸。
The plant hydrolyzed-enzyme catalyses naphthyl acetate hydrolyzed reaction, which produces acetic acid.
分析结果表明:该溶液系统的胶化主要取决于钛酸丁酯的逐步水解并与包括乙酸钡在内的其他有机分子的聚合;
The results show that gelling of the solution system depends on gradually hydrolysis of titanium butoxide and polymerization with other organic group line as well as barium acetate.
实验还测定了反应温度、催化剂用量和水酯比对乙酸甲酯水解率的影响。
The effects of reaction temperature, catalyst amount and mole ratio of water to methyl acetate on conversion were investigated.
研究了乙酰乙酸乙酯(AA)不同程度的水解对B-Z振荡反应的影响。
The influence of the hydrolysis of acetacetic ether (AA) on B-Z oscillating reaction is studied.
在本研究中,首次报道了乙酸改性钛酸四异丙酯水解制备钛溶胶的方法合成钛层柱粘土。
In this study, the Ti-PILC synthesized by the pillaring of Ti-precursor from the hydrolysis of modified TTIP with acetate group in water was firstly reported.
通过与模拟实验进行比较,认为水解产物乙酰乙酸与AA一起充当了振荡反应双底物的角色。
It is considered that the hydrolysis acid and AA are the double substrates in the oscillating reaction through the comparison of simulation test.
通过2,4-二羟基苯乙酸的合成考察了反应时间、物料配比和水解过程对反应的影响。
Through the experiment on synthesis of 2,4-dihydroxyphenyl acetic acid, the influences of reaction time, the molar rate of raw materials and hydrolysis on the yield of the product were studied.
对乙酸甲酯水解体系的催化剂和热力学、动力学研究现状进行了评述,分析了传统的水解分离工艺,并提出了可行的新工艺。
The studies on the catalysts, the thermodynamics and kinetics of methyl acetate hydrolysis were reviewed. The ordinary hydrolysis separation technology was analyzed and a new process was proposed.
以蔗糖、丁酸盐和乙酸盐为基质厌氧消化试验表明,金霉素和阿莫西林对水解发酵和产氢产乙酸的抑制效应强于产甲烷。
The results of sensitive step test showed that hydrolysis fermentation and hydrogen-production acetogenisis were the rate-limiting steps in the inhibition of aureomycin or amoxicillin.
方法原甲酸三乙酯与氰乙酸乙酯缩合,然后和羟乙基肼经环合、水解等一锅法合成5-氨基吡唑-4-甲酸,然后在亚硫酸钠存在条件下加热脱羧得到5-氨基-1-羟乙基吡唑。
METHODS 5-amino-1-hydroxyethyl pyrazole-4-carboylic acid was synthesized through condensation of ethyl cyanoacetate and triethyl orthoformate followed by one-pot methodology of cyclization, hydolysis.
西司他丁钠的合成以乙酰乙酸乙酯和1-溴-5-氯戊烷为原料,经活性亚甲基烃化、成肟和水解3步反应得7-氯-2-氧庚酸乙酯;
The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;
398中性蛋白酶3种食品级内切蛋白酶对牦牛血红蛋白进行酶解,以水解度及三氯乙酸可溶性氮为评价指标,采用酶解-活性炭法对水解液进行脱色,筛选出AS1。
398 to hydrolysis yak hemoglobin by degree of hydrolysis and TCA-NSI as the evaluation index, and this experiment adopts hydrolysis-activated carbon method to decolourization, and neutrase AS1.
以对氯苯乙腈为原料 ,苄基三甲基氯化铵为相转移催化剂 ,在碱性条件下进行水解反应制备对氯苯乙酸。
Preparation of trimethylsilyl quaternary ammonium salt phase transfer catalysts and their application in the synthesis of esterified carbon functional groups organic silicone monomers;
以对氯苯乙腈为原料 ,苄基三甲基氯化铵为相转移催化剂 ,在碱性条件下进行水解反应制备对氯苯乙酸。
Preparation of trimethylsilyl quaternary ammonium salt phase transfer catalysts and their application in the synthesis of esterified carbon functional groups organic silicone monomers;
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