烷基自由基对羰基进行进攻，生成双环的羰自由基中间体。
This radical attacks the carbonyl group to an intermediate bicyclic ketyl.
通过4-甲氧基苯甲醛的羰基加成反应合成4-甲氧基-苯基羟基乙酸。
The 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
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.
脂肪酸被生物体转化成包含碳氧双键即羰基的醛。
The fatty acids are then converted by the organisms to an aldehyde that includes a carbon atom bonded to an oxygen atom (together they create what's called a carbonyl group).
这些就是所谓的还原性糖，意味着它们有——“一条有趣的尾巴”Corriher女士这样形容——羰基基团，可以参与Maillard反应。
These are so-called reducing sugars, which means they have a structure - "a funny tail," Ms. Corriher called it - known as a carbonyl group that takes part in the Maillard reaction.
来自西弗吉尼亚州摩根城的美国职业安全健康研究所的一组科学家正着力研究4 -羰基戊醛。
Yet another team of scientists are working on this chemical at the National Institute for Occupational Safety and Health in Morgantown, w.v..
对羰基的加成作用是有机化学中最重要的反应之一。
Addition to carbonyls is one of the most important reactions in organic chemistry.
五羰基铁浓度对复合粒子的静磁性能影响不明显。
Influence of concentration of carbonyl iron on static magnetism was not obvious.
在羰基合成刮刀是有用的几乎每一个在你家的空间。
羰基在一般条件下不易被化学还原剂还原。
The chemical reductants fail to reduce carbonyl group under ambient conditions.
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.
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.
摘要对羰基合成反应的温度进行了研究。
近年来，光促进温和条件下的羰基化反应已成为化学工作者研究的热点之一。
In recent years, more and more attention has been paid to the photo-promoted carbonylation under ambient conditions.
壳聚糖辐照后并未发现有羰基形成。
比较国内外丙烯羰基合成主流技术以及羰基合成催化剂的研究进展情况。
Compares the main propylene carbonyl synthesis processes and the development of relative catalyst at home and abroad, and analyzes several methods of recovering waste Rhodium catalysts.
重点在担载金属羰基簇。
An emphasis is given to the supported metal carbonyl clusters.
在羰基合成刮刀是有用的几乎每一个在你家的空间。
The OXO Squeegee is useful in almost every room in your home.
甲酸甲酯作为新的碳源，在羰基合成化学中的作用越来越受到重视。
Methyl formate becomes more and more important as a new source of carbon in the carbonyl synthesis.
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.
论述了羰基镍粉末的颗粒形状和表面状态随粒度大小的变化规律。
This paper discussed the variation in the shape and surface state of the carbonyl nickel powder with particulate size.
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.
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.
试验结果表明，上述底物用这种新方法进行羰基合成，反应的选择性好，其中烯烃和卤代烃的收率也较高。
The results have shown that the selectivities are good for all substrates and the yields are satisfactory for olefins and halides in this way.
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.
首先考察了在计量硒作用下苯胺和硫醇的氧化羰基化反应。
Firstly, the oxidative carbonylation of aniline with thiols mediated by stoichiometric selenium has been investigated.
阐述了甲醇低压羰基会成醋酸的反应机理、工艺流程和技术特点，同时介绍了甲醇低压羰基合成醋酸的技术进展。
In this paper, reaction mechanism, process and technical character are described. Meanwhile, technical progress of carbonylation of methanol to acetic acid via low pressure is also introduced.
阐述了甲醇低压羰基会成醋酸的反应机理、工艺流程和技术特点，同时介绍了甲醇低压羰基合成醋酸的技术进展。
In this paper, reaction mechanism, process and technical character are described. Meanwhile, technical progress of carbonylation of methanol to acetic acid via low pressure is also introduced.
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