通过磷酰氯与手性仲胺的亲核取代反应高产率地合成了手性HMPA 类似物。
The chiral HMPA analogues were prepared in high yield by nucleophilic substitution between the chiral secondary amine and phosphoryl chloride.
在长期的研究中,发现Fe3O4粉体很难与合成沸石进行筛合成反应,从而导致产品的不纯净和不均一。
In long studies, Fe3O4 powder was found hard uniformly mixing with the zeolite synthesis reactant, which would lead to the impurity and inhomogeneity of the product.
燃料电池让氢与空气通过催化合成反应产生电力,唯一的副产物仅是热量和水。
Fuel cells combine hydrogen and air to produce electricity by running them through a chemical catalyst. The only byproducts are heat and water.
与合成反应一样,分解代谢需要的能量和原料来自于身体的分泌物。
As well as producing energy and building material, catabolism also breaks down material for excretion from the body.
因此,手性催化反应的关键是手性配体的设计与合成。
So the key of asymmetric reaction is design and synthesis of the chiral ligands.
简述了分别以一氧化碳、二氧化碳与甲醇、二甲醚等进行羰基化反应合成碳酸二甲酯(DMC)的研究进展。
Advances in the carbonylation synthesis of dimethyl carbonate (DMC) from methanol or dimethyl ether with carbon monoxide or carbon dioxide were summarized.
研究了D,L -丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
Butyl lactate was synthesized by the ester exchange reaction of d, L-lactide and n-butanol under the catalysis of sulfuric acid.
长链烷基苯是合成洗涤剂的重要原料,是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
Linear alkylbenzenes are important raw materials for the synthesis of washing agent and it is synthesized from the alkylation of benzene with long-chain alkene in the presence of an acid catalyst.
与高温固相反应法比,该方法具有合成温度低,反应时间短,所得产物硬度小,发光亮度好等优点。
It is more bright, has low hardness, low temperature of synthesis and requires less time in synthesis when compared with products synthesized by high temperature solid-phase reactions.
马来松香与聚甘油反应,合成了一种非离子表面活性剂马来松香聚甘油酯(PGMRE)。
Nonionic surfactant polyglycerol maleated rosin ester(PGMRE) has been synthesized by the reaction of maleated rosin and polyglycerol.
由双氧水与尿素反应合成过氧化尿素。
Urea peroxide is synthesized by reaction of urea with hydrogen peroxide.
用新的催化体系(铁-锑复合催化剂)催化三乙基铝(TEA)与溴甲烷进行烷基交换反应合成三甲基铝(TMA)。
Trimethylaluminum(TMA), usually used in organic catalysis and organic synthesis, was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
介绍了碳酸二甲酯与苯酚酯交换合成碳酸二苯酯的反应热力学。
Reaction thermodynamics of diphenyl carbonate (DPC) synthesis by the transesterification reaction from dimethyl carbonate and phenol is introduced.
用硫酸氢钾催化苯甲醇与丙酸的酯化反应合成了丙酸苄酯。
Benzyl propionate was synthesized by the esterification reaction of benzyl alcohol with propionic acid using potassium bisulfate.
研究了钡的新显色剂二溴对甲偶氮羧的合成及其与钡显色反应的条件。
A new reagent, dibromomethyl carboxyazo was synthesized and its colour reaction with barium was studied.
被诱导的基因包括与细胞生长、白质合成及应激反应相关的基因。
Genes involved in cell growth, protein synthesis and stress response exhibited obvious induction.
提出了在高温和静态氮气氛下利用金属与氮气直接反应制取金属氮化物的合成方法。
A synthesis method is propsed to prepare metal nitrides by direct nitridation of metals in static nitrogen atmosphere at high temperature.
用双酚a型环氧树脂与乙酸反应,合成了具有刚性骨架的环氧树脂加成多元醇(EAP),并用FTIR与1h-NMR对其进行了表征。
A new kind of epoxy resin adduct polyol (EAP) with rigid backbone was synthesized by the reaction of bisphenol - a type epoxy resin with acetic acid and characterized with FTIR and 1h - NMR.
水解作用通过与水反应分解一种化学合成物,比如盐水的解析,或淀粉向葡萄糖的催化转变。
Decomposition of a chemical compound by reaction with water, such as the dissociation of a dissolved salt or the catalytic conversion of starch to glucose.
这些香料都是以草酸二乙酯与相应的醇为原料,通过酯交换反应来合成的。
This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials.
研究了常温下由苯酚钠悬胶体与三氯氧磷反应合成磷酸三苯酯的工艺条件,找到了一条比较好的合成方法。
Some technological conditions of the synthesis of triphenyl phosphate by the reaction of sodium phenolate and phosphorus oxychloride were studied, and a better process was found out.
在乙腈、聚乙二醇存在下,用苯甲醚与硝酸铈铵反应合成了邻硝基苯甲醚。
In the presence of ethanonitrile and polyethylene glycol, anisole reacts with ammonium ceric nitrate to form o-nitroanisole.
苯二胺与四氯化钛反应合成聚合物的模型化合物钛杂咪唑啉。该化合物经元素分析、红外光谱、质谱测试。
Ti -containing imidazoline model compound was prepared by reacting o-phenylene diamine with titanium tetrachloride. The compound was identified by elemental analysis, IR and MS.
以铁钾矾为催化剂,通过葵酸与乙醇反应合成了癸酸乙酯。
Ethyl decanoate was synthesized from capric acid and ethanol by using ferric potassium alum as catalyst.
用过氧化氢氧化淀粉,控制一定的氧化深度,进一步与交联剂反应合成了一种新型上浆剂。
A new slurry agent was synthesized by oxidization of the starch with hydrogen peroxide under a certain oxidization degree, and then reacting with a cross-link agent.
用固定床反应器模拟合成气制备炉,对天然气与煤联合气化反应过程进行了研究。
The reaction process of natural gas and coal was investigated using a fixed-bed reactor to model the furnace for preparing synthesis gas.
对合成反应条件与反应机理作了探讨,评价了不同还原方法所得的产物结构与香气的关系。
Reaction conditions and mechanism are discussed, and relationship between odor and structure of the obtained products by different reducing reactions is evaluated.
利用三乙胺盐酸盐与酚醛环氧树脂进行开环反应合成了酚醛环氧树脂季铵盐。
The new polymer quaternary ammonium salt was synthesized from epoxy phenolic resin via ring-opening reaction with aqueous solution of triethylamine hydrochloride.
利用三乙胺盐酸盐与酚醛环氧树脂进行开环反应合成了酚醛环氧树脂季铵盐。
The new polymer quaternary ammonium salt was synthesized from epoxy phenolic resin via ring-opening reaction with aqueous solution of triethylamine hydrochloride.
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