活性中间体越稳定,其越容易形成,反应活性就越大。
The more stable an activated intermediate is, the easier the formation is, and the more active the reaction is.
活性中间体和过渡状态性质的许多计算机也可能被实现。
Many calculations of the properties of reactive intermediates and transition states have also been performed.
活性中间体和过渡状态性质的许多计算机也可能被实现。
Many calculations of the properties of reactive intermediates and transition states have been performed.
碳烯和硅烯是分属于碳化物和硅化物中的两类反应活性中间体。两者甚为相似。
Carbene and silylene are two kinds of reactive activity intermediates which belong to carbide and silicide separately, but they are quite similar.
以环氧氯丙烷和三甲胺为原料,常温下合成活性中间体失水甘油基三甲基氯化铵(GTA)。
Using trimethylamine and epichlorohydrin as raw materials, an active intermediate, glycidyl trimethyl ammonium chloride (GTA), was synthesized at ambient temperature.
重点叙述了某些光学活性中间体的工业合成技术,包括手性氨基酸、手性羧酸、手性醇、手性胺和手性环氧化物。
The industrial synthesis of certain optically active intermediates, including chiral amino acids, carboxylic acids, alcohols, amines and epoxides is reviewed.
光学活性醇被广泛用作杀虫剂及液晶材料生产的重要手性中间体,因其具有重要的应用价值,已引起人们广泛兴趣。
As important choral intermediates, optically active alcohols were widely used in the production of pesticide and liquid crystals for their vital useful value, widely interesting have been aroused.
二卤代丙烯化合物,含有之作为活性成分的杀虫剂,以及其生产中间体。
Dihalopropene compounds, insecticides containing them as active ingredients, and intermediates for their production.
三氟乙基苯胺衍生物是重要的有机合成中间体和生命活性物质。
Trifluoroethyl-substituted derivatives of Aniline are important intermediates in the synthesis of organic chemistry and biologically active compounds.
其次,减缓代谢途径的一个中间体,通常是磷酸烯醇或柠檬酸降低酶的活性。
Secondly the enzyme is inhibited by an intermediate lower down the metabolic pathway, usually either phosphoenolpyruvate or citrate.
主要用途:本品主要用作农药、染料、颜料、表面活性剂、杀虫剂的中间体,还可用于生产稳定剂、防腐剂、乳化剂等。
Mainly use: used to produce agrochemical, dyestuff, pigment, surface active agent, insecticide. Also used to produce stabilizing agent, antiseptic, emulsion, etc.
它有一个全面的产品组合的注射剂,口腔细胞毒性药物,细胞抑制剂,中间体和活性药物成分(api)。
It has a comprehensive product portfolio of injectables, oral cytotoxics, cytostatics, intermediates and active pharmaceutical ingredients (APIs).
酯化合物,含有其作为活性成分的有害生物防治剂,及其生产中间体。
Ester compound, agent for controlling noxious organisms containing the same as active ingredient, and production.
乙二胺是具有化学活性的精细中间体、医药中间体,用它可以开发一系列高附加值产品。
Ethylenediamine has chemical activities as intermediates of fine chemical and medicine, which is widely used to derive a series of products with high value.
芳基叠氮化合物因其易于制备、黑暗中稳定、光照下产生高活性反应中间体等优点而被广泛应用于光亲合标记研究中。
Aryl azides are by far the most frequently used photoaffinity probes because they can be easily synthesized, as well as being chemically stable in the dark and highly reactive upon photoirradiation.
通过磁共振谱、红外光谱、元素分析和质谱等测试手段对所合成的化合物进行了结构表征,并对目标化合物及部分中间体进行了生物活性测试。
Their structures were confirmed by NMR, ir, EA and MS Subsequently, the biological activities of target compounds and some important intermediates were evaluated in the greenhouse.
结果表明,中间体和目标产物均为性能优良的新型非离子表面活性剂。
The results showed that both the intermediate and the target product were novel and excellent nonionic surfactants.
氰醇是合成-氰基醇类,-羟基酮类及酸类化合物的重要生物活性物质,这些化合物又是精细化工、制药和农用化学品领域的重要原料和中间体。
Cyanohydrins are biologically active compounds used in synthesis of - amino alcohols, - hydroxy ketones and - hydroxy acids, which have importance as fine chemicals, pharmaceuticals and agrochemicals.
辛基酚是一种重要的精细化工中间体,广泛应用于生产表面活性剂、粘合剂、树脂、工业纤维的稳定剂等化工产品。
Octyl phenol is an important fine chemical intermediate material, which is widely used in producing chemical products such as surfactant, bond, resin and industrial fiber.
新型憎醇-憎油含氟表面活性剂,其中间体,制备方法及应用。
Novel oil and alcohol repellent fluorinated surfactant, intermediates, producing process and application thereof.
第二步,在金属钾催化条件下,使第一步产物缩水甘油醚发生开环加成反应生成双子表面活性剂的中间体低聚二醇。
The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.
第二步,在金属钾催化条件下,使第一步产物缩水甘油醚发生开环加成反应生成双子表面活性剂的中间体低聚二醇。
The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.
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