aldehydes
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释义
[医]醛；
英英释义
aldehyde
n.any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids
词组短语
phenolic aldehyde[化]酚醛
protocatechuic aldehyde原儿茶醛
cinnamic aldehyde肉桂醛；桂皮醛
aldehyde group[化]醛基
aldehyde dehydrogenase醛脱氢酶
双语例句
Aldehydes possess anesthetic properties.
醛类具有麻醉的作用。
There are several examples of a one-carbon degradation leading to aldehydes.
有一些减少一个碳原子制备醛的实例。
权威例句
Enantioselective addition of organozinc reagents to aldehydesEnantioselective Organocatalyzed Sulfenylation of Aldehydes (p 794-797)
Solvent-free Oxidation of Primary Alcohols to Aldehydes using Supported Gold Catalysts
ChemInform Abstract: Enantioselective Addition of Organozinc Reagents to Aldehydes
Chemistry and biochemistry of 4-hydroxynonenal, malonaldehyde and related aldehydes.
ChemInform Abstract: Enantioselective α‐Trifluoromethylation of Aldehydes via Photoredox Organocatalysis
Merging Photoredox Catalysis with Organocatalysis: The Direct Asymmetric Alkylation of Aldehydes
ChemInform Abstract: Enantioselective Addition of Dialkylzincs to Aldehydes Promoted by Chiral Amino Alcohols. Mechanism and Nonline...
N-Heterocyclic Carbene-Catalyzed Generation of Homoenolates: γ-Butyrolactones by Direct Annulations of Enals and Aldehydes
Autoxidation of human low density lipoprotein: loss of polyunsaturated fatty acids and vitamin E and generation of aldehydes.
1. As open-chain hydroxy aldehydes and hydroxyl ketenes, the monosaccharides are very reactive.
以开链的羟基醛和羟基酮形式 存在的单糖非常活泼。
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2. carbohydrates Carbohydrates are usually defined as polyhydroxy aldehydes and ketones or substances that hydrolyze to yield polyhydroxy aldehydes and ketones.
碳水化合物碳水化合物通常的定义是多羟基的醛和酮或者水解产生多羟基的醛和酮的物质。
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3. The simple sugars (monosaccharides0 are basically aliphatic polyhydroxy aldehydes and ketones: HOCH2- (CHOH) n-CHO and HOCH2- (CHOOH) n-1-C-O-Ch2OH, called “aldoses” and “ketoses,” respectively.
单糖本质上是脂族的多羟基醛和酮，即HOCH2-(CHOH)2-CHO和HOCH 2-(CHOH)n-1-C:O-CH 2 OH,分别称为醛糖和酮糖。
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4. Here it is represented by essence of lemon, composed of hydrocarbons and terpenic aldehydes, made from cold pressing or by distilling the peel.
这里（我们）用柠檬的精华来表现这种味道，由碳氢化合物以及萜烯乙醛组成，由冷压或柠檬皮蒸馏而成。
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5. The double bond is attacked by the oxygen, forming aldehydes and carbonyls.
双结合受氧的攻击形成乙醛和碳酸基。
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6. ABS water-resistant, inorganic salts, alkalis and acids, alcohols and insoluble in most hydrocarbon solvents, soluble in aldehydes, ketones, esters and certain chlorinated hydrocarbons in.
ABS耐水、无机盐、碱和酸类，不溶于大部分醇类和烃类溶剂，易溶于醛、酮、酯及某些氯化烃中。
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7. Liquor bitterness is induced mainly by fusel alcohols , aldehydes, phenolic compounds, sulphocompounds, alkaloid, polypeptide, amino acids, and inorganic salts.
引起白酒苦味的主要物质为杂醇类、醛类、酚类化合物、含硫化合物、生物碱、多肽、氨基酸、无机盆。
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8. They do not burn readily and are reasonably resistant to chemicals, except for nitric and sulfuric acids, chlorinated hydrocarbons, and aldehydes.
它们不易燃烧，相当地耐化学品，除非是硝酸、硫酸、氯化烃和醛类。
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9. Aldehydes possess anesthetic properties.
醛类具有麻醉的作用。
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10. Ketones are very closely related to both aldehydes and alcohols.
酮与醛和醇的关系都很密切。
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11. In addition to acetic acid in vinegar contains a lot of things, and contains calcium, iron, lactic acid, glycerol, amino acids and aldehydes.
醋内除含有大量醋酸外，并含有钙、铁、乳酸、甘油、氨基酸及醛类化合物。
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12. REDOX Relationships amongst Alcohols, Aldehydes and Ketones and Carboxylic acids.
醇，醛与酮和羧酸之间的氧化还原关系。
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13. Aldehydes and other carbonyl compounds are most easily polymerized by essentially anionic mechanisms on account of the stability of alkoxide ions.
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。
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14. The reaction of sulfate with aldehydes and ketones has been known for many years.
大家知道硫酸盐能与醛类和酮类反应已有许多年了。
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15. Many new compounds can be obtained by addition with water, hydrogen, alcohols, phenols, amines, amides, carboxylic acids, olefins, aldehydes, ketones, esters, etc.
与水、活性氢、醇、酚、胺、酰胺、羧酸、烯烃、醛、酮、酯加成得到的新化合物，可作脱水剂和氧化剂使用。
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16. This study on the tanning and retanning properties of LB type protein syntan respectively was synthesized by the collagen fiber hydrolysates with phenol sulphonate and aldehydes.
本文分别研究了LB型蛋白鞣和复鞣性能，该鞣剂由胶原纤维水解物通过苯酚磺化产物和醛类缩合改性而成。
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17. The bactericides of aldehydes and quaternary ammonium salts killed bacteria through nucleophilic additional reaction, infiltration and diffusion resp.
醛类、季铵盐类杀菌剂分别通过亲核加成反应、渗透和扩散杀灭细菌；
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18. It was found that there was some difference in ethanols content, esters content, aldehydes content, and amino acids content between the wine with or without wheat starter addition.
试验结果表明，麦曲的加入对酯类物质和氨基酸类物质的含量影响明显，而对醛类物质和醇类物质的影响不大。
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19. The results showed that the main volatile flavor components in fermented mutton sausage include aldehydes, hydrocarbons, alcohols and esters .
结果表明，发酵羊肉香肠中的主要挥发性风味物质为醛类、烃类、醇类和酯类等。
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20. Sum in weight percent all the impurities found: water, acidity, carbon dioxide and aldehydes and subtract from 100.0 percent to obtain the percent by weight ethylene oxide.
用100％减去所发现的所有杂质重量百分数之和，包括水、酸、二氧化碳和醛类，即为环氧乙烷的重量百分比。
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21. The temperature and time of reaction, solvent and the constitution of aldehydes have remarkable influences on condensation reaction.
并讨论了反应温度、反应时间、溶剂以及醛的结构对反应产率的影响。
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22. The product was mainly consisted of acids, alcohols, aldehydes, ketones, esters, water and small-molecule gases.
白松的热裂解产物主要有酸类、醇类、醛类、酮类、酯类、水分和小分子气体等。
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23. The carbonyl methylene condensation reaction of aromatic aldehydes with ethyl cyanoacetate has been carried out smoothly in the presence of potassium fluoride only giving E isomers in high yield.
在氟化钾催化下，芳香醛与氰乙酸乙酯发生羰基与活性亚甲基的缩合反应，高收率地得到缩合产物，且只得到E式产物．。
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24. Esters, alcohols, aldehydes, and lactones were the major constituents.
主要成分为酯类、醇类、醛类、内酯类化合物。
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25. Results showed that the important flavor compounds contributed to the flavor of yard feeding Hezuo swine meat were possibly some aldehydes, N-, S-containing compounds and furans.
检测结果还表明，醛类物质、含硫含氮化合物以及呋喃类物质可能是影响合作猪肉风味的重要挥发性物质。
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26. In reality , readily characterizable high polymers are formed only from aliphatic aldehydes RCHO.
事实上有代表性的高聚物仅仅是由脂肪醛RCHO制得的。
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27. The condensation of carbamates with aldehydes under the catalyzing of acids affords alkylene dicarbamate or monocarbamate in good yields.
氨基甲酸酯和醛在酸性催化剂存在下进行缩合反应，得到较高产率的亚烷基氨基甲酸酯。
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28. Mannich reactions with aromatic, aromatic ketones and aromatic aldehydes and their applications were studied systematically.
系统研究了脂肪甲酮与芳香醛和芳香胺参与的曼尼奇反应。
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29. Due to the difference in the composition of aldehydes, ketones and acids , the individual properties were eventually formed.
由于在醛类、酮类、酸类物类构成上的差异，就形成了各自的特点。
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30. Due to the difference in the composition of aldehydes, ketones and acids , the individual properties were eventually formed.
由于在醛类、酮类、酸类物类构成上的差异，就形成了各自的特点。
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31. There are several examples of a one-carbon degradation leading to aldehydes.
有一些减少一个碳原子制备醛的实例。
-- 来源 -- 英汉 - 辞典例句
32. The reaction of sulfate with aldehydes and ketones has been known for many years.
大家知道硫酸盐能与醛类和酮类反应已有许多年了。
-- 来源 -- 英汉 - 辞典例句
33. In reality, readily characterizable high polymers are formed only from aliphatic aldehydes RCHO.
事实上有代表性的高聚物仅仅是由脂肪醛RCHO制得的。
-- 来源 -- 英汉 - 辞典例句
34. The yields of aldehydes produced in this sequential process are comparable to the two-step method.
用此法制得的醛，其产率与用两步法可制得的产率不相上下。
-- 来源 -- 英汉 - 辞典例句
35. Both the alcohols and aldehydes are secondary products of the oxidation.
醇和醛两者为氧化的次级产物。
-- 来源 -- 英汉 - 辞典例句
36. Aldehydes and other carbonyl compounds are most easily polymerized by essentially anionic mechanisms on account of the stability of alkoxide ions.
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。
-- 来源 -- 英汉 - 辞典例句
37. Vitamin B12 is destroyed by oxidizing and reducing agents, by aldehydes, ascorbic acid, ferrous salts, vanillin and acacia.
维生素B12可被氧化剂和还原剂、醛类抗坏血酸、二价铁盐、香草醛和阿拉伯树胶破坏。
-- 来源 -- 英汉 - 辞典例句
38. The negative univalent radical HCO, characteristic of aldehydes.
甲酰负的单价HCO原子，具乙醇的特性
-- 来源 -- 英汉 - 短句参考
39. aldehydes and ketones
醛和酮
-- 来源 -- 英汉 - 短句参考
40. Aldehydes possess anesthetic properties.
醛类具有麻醉的作用。
-- 来源 -- 英汉 - 辞典例句
aldehydes
