乙醛脱羧酶帮助醛脱去羰基形成仅有碳氢原子组成的链,即碳氢化合物。
The enzyme aldehyde decarbonylase helps remove this group to form a chain of hydrogen and carbon atoms--the hydrocarbon.
该方法成功地应用到对大气中羰基化合物的定量检测。
The method was successfully applied to the quantitative analysis of carbonyl compounds in ambient air samples.
结果表明,该配合物催化甲醇羰基化反应具有较好的活性和选择性。
The results show that such complex has good catalytic activity and selectivity for catalytic methanol carbonylation.
醛类和其他的羰基化合物,由于烷氧基离子的稳定性,最容易通过本质上是负离子的机理进行聚合。
Aldehydes and other carbonyl compounds are most easily polymerized by essentially anionic mechanisms on account of the stability of alkoxide ions.
此外,它除了还原双键以外可以用来还原各种不同的有机化合物,如:硝基、羰基、氨基、芳香族及杂环化合物、羟基、羧基。
Moreover, catalytic hydrogenation can be used to the reduction of a variety of organic compounds, such as nitro, carbonyl, amino, aromatic and heteroaromatic compound, hydroxy group and carboxy group.
挥发性羰基化合物是卷烟主流烟气中主要有害成分之一。
The volatile carbonyl compounds are one of most poisonous components in cigarette mainstream smoke.
从金属羰基化合物和氧原子转移试剂两个方面讨论了影响CO取代反应速率的各种因素。
Various factors relating to the metal carbonyls and to the o atom transfer reagents that effect the rates of CO substitution are discussed.
手性羰基铁络合物很少被用于芳香酮的不对称氢转移氢化。
Chiral carbonyl iron systems have seldom been used in asymmetric transfer hydrogenation of aromatic ketones.
结果表明在查尔酮系列化合物中由于羰基的存在,溶剂和溶质问极性作用、酸碱作用比较显著。
The results show that the polarity and acid-base reaction is remarkable between the title compounds and the solvents because of the existence of carbonyl.
结合非水相生物催化的优势利用微生物细胞催化不对称还原羰基化合物可以有效地制备这些手性醇。
Combining the advantages of biocatalysis in nonaqueous media, asymmetric reduction of corresponding carbonyl compounds using microbial cells is an efficient method to produce these chiral alcohols.
结果表明在广州市区范围内,不同的时间不同的采样地点羰基化合物的浓度变化不大。
The results showed that the concentrations had no pronounced changes between different sampling sites and times in the districts of Guangzhou.
本文综述了羰基化合物在质子和质子惰性溶剂中的极谱研究现状。
This paper discusses the current polarographic research of carbonyl compound in proton & proton inert solvent.
本文介绍了二级胺、一级胺和4 -氨基吡啶为共试剂的硝基化合物的羰基化反应情况。
In this paper carbonylation of nitro compounds with co-reagent based on secondary amine, primary amine and 4-aminopyridine is detailed.
近几年来,在国外它被广泛地用于催化氧化醇类以合成羰基化合物的研究。
In recent years, it was extensively used to investigate the synthesis of many carbonyl compounds by catalytic oxidation of alcohols at abroad.
选择性氧化醇类至羰基化合物是有机合成中的一个重要反应,其在精细化学品工业中具有关键的作用。
The Selective oxidation of alcohols to the corresponding carbonyl compounds is a key process in organic synthesis and plays a central role in the fine chemicals industry.
表面的类脂物氧化后,产生许多化合物,包括羟基和羰基化合物。
The surface lipids undergo oxidation, generating many compounds containing hydroxyl and carbonyl groups.
表面的类脂物氧化后,产生许多化合物,包括羟基和羰基化合物。
The surface lipids undergo oxidation generating many compounds containing... hydroxyl and carbonyl groups.
车况、燃油质量、高比例的柴油车及气候等因素是造成路边空气中羰基化合物污染的重要原因。
Vehicular maintenance, oil quality and high proportion of diesel-run vehicles may be top factors to cause higher concentrations of carbonyl pollutants in Guangzhou.
因为在氧化的脂肪中的羰基化合物分子量都比较高,它们可通过多种技术从低分子量挥发性羰基化合物中分离出来。
Because the carbonyl compounds in oxidized fats are of relatively high molecular weight, they can be separated by a variety of techniques from lower molecular weight volatile carbonyl compounds.
本论文主要研究了水相中无机盐和二氧化碳促进羰基化合物烯丙基化反应。
This dissertation studied allylation reactions of carbonyl compounds promoted by inorganic salts or carbon dioxide in aqueous media.
酒类中双羰基化合物对其风味有着重要影响。
Dicarbonyl compounds in wine had an important effect on flavor.
报道了螯合型正方平面羰基铑配合物催化甲醇羰基化反应的机理研究。
The mechanism of methanol carbonylation catalyzed by a chelated square planar carbonyl rhodium complex was studied.
本文总结了六种钼—铁混合金属羰基原子簇化合物的合成、结构类型和电子计数。
We discuss the syntheses, structural pattern and electron counting of six molybdenum-iron mixed metal carbonyl clusters.
作为亲电体的羰基与作为亲核体的H,C,N和O的羰基化合物反应。
Reactions of Carbonyl Compounds with the Carbonyl Group as an Electrophile with H, C, N and O Nucleophiles.
利用诱导效应指数建立了一个含羰基有机化合物的标准生成热的简单计算方法。
A simple method for calculating the standard heats of formation of organic compounds containing carboxide using the inductive effect index is built up.
应用纳米铟、铋、锡在水相中成功地促进了多种羰基化合物和巴豆基溴的丁烯基化反应,在短时间内得到了高产率的高烯丙醇。
Indium, tin and bismuth nanoparticles successfully mediated crotylation of carbonyl compounds in water to afford the corresponding homoallylic alcohols with good to excellent yields in a short time.
涉及的底物有酚、羰基化合物、醇和胺等。
Substratesinclude phenols, carbonyl compounds, alcohols, and amines, etc.
因此一般认为在秋冬季,大气中羰基化合物的来源主要是汽车尾气,而夏季则是汽车尾气和大气光化学反应。
Therefore, vehicular exhaust was the primary source in autumn and winter while both vehicular exhaust and photochemical reactions were the major sources in summer.
因此一般认为在秋冬季,大气中羰基化合物的来源主要是汽车尾气,而夏季则是汽车尾气和大气光化学反应。
Therefore, vehicular exhaust was the primary source in autumn and winter while both vehicular exhaust and photochemical reactions were the major sources in summer.
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