carbonyl group

1. Emphasis is on substitution and elimination reactions and chemistry of the carbonyl group.
   重点强调取代、消除反应和含羰基基团的化学性质。
2. Preparation of Borohydride Anion Exchange Resin ( BER) and Reductions of Carbonyl Group and Acyl Chloride Compounds
   硼氢阴离子交换树脂的制备及其对羰基、酰氯化合物的还原
3. Bimolecular elimination with formation of a carbonyl group;
   双分子羰基形成消除；
4. At the same time, the cellulose matrix is dehydrated to produce carbonyl group and conjugated olefinic bond, and then transfers into aromatic rings and graphite-like micro-crystal gradually.
   同时纤维素基体脱水生成羰基和共轭双键，之后不断芳构化堆叠成为类石墨微晶。
5. This method represents a useful conversion of the carbonyl group to the amino group.
   它成为一个使羰基变为氨基的有效方法。
6. It is a somewhat well known fact that sodium bisulfite will add to the carbonyl group of a ketone to form a crystalline addition product.
   人们已经知道，亚硫酸氢钠可以加成到酮的羰基基团形成一个晶体加成产物。
7. Any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals.
   一类有机化合物，在每两个烃原子团中有一组羰基与一个碳原子相连。
8. This article narrates the transformation of carbonyl group in optically active epoxy ketones under different reagents and enumerates some synthetic applications of this kind of transformation.
   本文讲述了有机合成中光学活性的环氧酮化合物中酮羰基在不同试剂下的转化，并列举了一些相关的合成应用。
9. Discussion on Determination Method of Carbonyl Group Value in Rancidity Test of oil in the defatted powder of semen platycladi
   柏子仁霜脂肪油酸败度检查中羰基值测定方法的探讨
10. The hydrogenation of diene compound and carbonyl group with yeasts was studied.
    对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究。
11. The chemical reductants fail to reduce carbonyl group under ambient conditions.
    羰基在一般条件下不易被化学还原剂还原。
12. At the same time, some other oxycompound groups, such as carbonyl group, aldehyde group and ketone group, appear or increase with temperature rising.
    与此同时，醛、酮、酯类羰基、芳香酮、醛类羰基等类含氧基团或者从无到有，或者官能团数量不断增加。
13. ( chemistry) relating to or containing the carbonyl group.
    （化学）含有或与碳酰基二价原子团CO有关。
14. The most important chemistry of dithianes, however, lies in their ability to act as a masked carbonyl group.
    然而二硫杂环已烷的最重要的性质是它作为一个被掩蔽的羰基。
15. Reactions of Carbonyl Compounds with the Carbonyl Group as an Electrophile with H, C, N and O Nucleophiles.
    作为亲电基的碳基与作为亲核基的H，C，N和O的羰基化合物反应。
16. Carbonyl group on position C18 and epoxy three-membered ring on position C7~ C8 are the connecting parts;
    18位上的羰基和7～8位上的三元氧环是其活性的可能结合部位；
17. The substituent in the a position of each carbonyl group will prevent this group from interacting with the receptor.
    这可能是因为3-吡唑烷酮类化合物结构中，羰基是生物活性中心，羰基的4位引入取代基会阻碍与受体的结合，使活性降低。
18. The reduction of the carbonyl group on haloperidol to hydroxyl group has almost no effect on its vasodilative activity.
    氟哌啶醇母体上羰基被还原为羟基一般对其扩血管活性影响不大。
19. Simulating result shows that benzene ring, carbonyl group, aldehyde group, conjugated double bond and the function between bond and chain are the important reason for the exist of traps in polymers.
    模拟结果表明聚合物中苯环、羰基、醛基和共轭双键等化学键及键和链的作用是空间电荷陷阱存在的重要原因。
20. The X-ray crystal structure analysis revealed that the compound has carbonyl group, carboxyamide group, ester group and bromine atom, and the one dimension chain structure of the title compound is formed through the hydrogen bond between N ( 2) H and O ( 2).
    X射线晶体结构的分析表明该化合物含羰基、酰胺基、酯基与溴原子，并且通过N（2）H与O（2）分子间氢键连成一维链状结构。
21. During the synthesis and curing process, the ether linkage and carbonyl group were produced simultaneously.
    在合成和固化过程中，同时有醚键和羰基生成。
22. Discussion on Determination Method of Carbonyl Group Value in Rancidity Test of Chinese Pharmacopoeia
    对《中国药典》酸败度检查法中羰基值测定方法的探讨
23. The α,β-unsaturated carbonyl group structure is the antibacterial function domain of these compounds, and the active centers are located at β-carbon and oxygen in carbonyl groups.
    α，β－不饱和羰基结构是该类化合物的抗菌功能域，其活性中心在β－碳和羰基氧。
24. The IR analysis shows that the oxygen in carbonyl group of CH_ ( 3) COO in PVAc chain unit provides lone pair electron to form the coordinate bond with metal copper ion Cu ( II).
    IR分析表明：PVAc-Cu（Ⅱ）配合物中PVAc链节中的CH3COO&中的羰基氧提供孤对电子与金属离子Cu（Ⅱ）形成配位键。
25. It is confirmed by 13C NMR spectrum that the "H" bonds have been formed between the carbonyl group of the modified resins and the silanol group of sodium silicate.
    用13cNMR谱对改性水玻璃进行检查，证实树脂中的羰基和水玻璃中的硅羟基之间形成了氢键。
26. The Reduction of Carbonyl Group by the System of Sodium Borohydride
    硼氢化钠体系作还原剂对羰基的还原
27. Some oxygen-containing groups ( mainly carbonyl group) were introduced onto the molecular chains of HDPE through electron beam irradiation, the polarity of HDPE was increased and the compatibility between HDPE and PA6 was thus improved.
    通过电子束辐照的方法，在高密度聚乙烯（HDPE）分子链上引入含氧极性基团，增加了HDPE分子的极性，改善了HDPE与PA6的界面相容性。
28. The significant groups content of HA were analyzed, such as carboxyl group, carbonyl group, methoxyl group and total acidic group. The variation regularity of the groups with the time and reaction conditions during the ammoxidation process were investigated.
    考察了褐煤氧化氨解过程中，腐殖酸中羧基、羰基、甲氧基及总酸性基等重要官能团随反应时间和反应条件（温度、氧压、氨水浓度）的变化规律。
29. Intermediate of ionic liquid with carbonyl group was synthesized with thionyl chloride, N-ethyl imidazolium and chloroacetic acid, and then reacted with cellulose to prepare ionization cellulose ester, whose solubility was also examined.
    以N-乙基咪唑、氯乙酸和氯化亚砜为原料，合成带有酰氯基团的离子液体中间体，再与棉纤维酰氯酯化制备了离子化纤维素酯，并考察其溶解性能。
30. NO selectively oxidizes the hydroxy group of propargylic alcohols to carbonyl group at ambient temperature.
    NO与丙炔醇在环境温度下反应，生成相应的丙炔基羰基化合物。

noun

1. the bivalent radical CO