• 含有或其半缩醛单糖。

    Any of a class of monosaccharide sugars containing an aldehyde group.

    youdao

  • 目的研究复方醛基消毒剂杀菌效果。

    Objective:To study germicidal efficacy of compound aldehyde group disinfectant.

    youdao

  • 原子显微镜扫描对醛基玻片表面形貌进行分析。

    Scanning aldehyde group glass slide by atomic force microscopy study the surface shape.

    youdao

  • 发生醛基反应主要氧化氢化缩合脱羰基

    Occurred in the main reaction on the aldehyde oxidation, hydrogenation, condensation, de-carbonyl, etc.

    youdao

  • 活性醛基导致蛋白质修饰认为多种退行性疾病发病机制有关

    Protein modifications resulting from reactive aldehydes are thought to be involved in the pathogenesis of various degenerative diseases.

    youdao

  • 双键及一个烯醛基共轭程度大致相当。

    In the two sides of nitrogen bridge, the degree of conjugation of one double bond with one formyl polyenic group is about equal to two aromatic cycles.

    youdao

  • 表面伯胺茚三酮反应转化醛基通过反应证明了醛基的存在。

    The surface amino group was transferred to the aldehyde group after it reacted with ninhydrin. The surface aldehyde group was confirmed by the mirror reaction.

    youdao

  • 糠醛化学性质活泼主要表现结构中的醛基呋喃两者有很强反应性

    Furfural chemical properties of active mainly in the structure of the aldehyde and furan ring in both highly reactive.

    youdao

  • 观察ARL-1基因细胞生长影响含有活性醛基的抗肿瘤药物的细胞毒性及其所诱导的细胞凋亡的影响。

    The effect of ARL-1 on cell growth and apoptosis induced by anticancer drug consisting of active aldehyde group were observed.

    youdao

  • 利用氧化,首次将玉米淀粉改性同时含羧基醛基的氧化淀粉,制革工业提供了一种新型清洁化

    The corn starch was modified into oxidized starch containing both carboxyl and aldehyde groups by chemical method, which provided a new clean tanning agent for leather industry.

    youdao

  • 碘酸钠选择性氧化亚麻纤维大分子上生成了活性醛基随着氧化程度加深,纤维表面变得粗糙结晶度不断降低

    The surface of flax fiber became rough and crystallinity decreased while increasing oxidized degree of flax fiber. The structure and properties of the proteinic oxidized flax fiber were studied.

    youdao

  • 羟基处于醛基邻位和对位甲醛与几种苯乙酮衍生物的缩合,多数没有得到预期的产物,收率极低;苯乙酮的羟基对缩合反应影响很大,羟基越多,缩合越困难。

    The groups in ring of benzaldehydes, no matter they are electron withdrowing or electron donating except of hydroxy, do not seem to have much effect on the yield.

    youdao

  • 龙脑合成檀香香料龙脑烯基甲基醇,并对结构进行了分析鉴定

    From campholenic aldehyde , the sandalwood fragrance campholenyl methyl cyclohexanol was prepared, its structure is analyzed and identified.

    youdao

  • 目的评价无菌操作蒸汽清洗机清洗超声波清洗机清洗、2%二醛溶液浸泡4种处理方法树脂试件消毒效果

    Objective To evaluate the effect of 4 methods on acrylic resin base denture, namely, aseptic manipulation, steam cleaning, ultrasonic cleaning, and soaking in 2% glutaraldehyde solution.

    youdao

  • 通过一元羧酸乙烯反应,我们得到新颖缩醛结构分子玻璃

    A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

    youdao

  • 各种含有芳基三氟甲磺酸催化量和膦体的存在下与或酰胺发生取代反应。

    Various aryl triflates, bearing ketone or aldehyde groups, were evaluated for palladium-mediated introduction of an amino group at the triflate position in the presence of various phosphine ligands.

    youdao

  • 2-H苯并咪唑盐与烃基为不饱和取代基格利雅试剂的加成-水解反应进行了研究,将此反应应用不饱和制备

    The addition-hydrolysis reaction was applied to the synthesis of unsaturated aldehyde by the -reaction of 2-H benzimidazolium iodide with alkenyl magnesium bromide.

    youdao

  • 通过IRNMR谱图分析,得知该聚合物含有基和基的结构单元以及

    The IR and NMR spectra of the polymers indicated that the polymer structure contained ester and ketone units in the backbone, and a cyclic acetals as side chain.

    youdao

  • 目的:测定TIPSS前后犬组织丙二醛(MDA犬静脉血超氧化物歧化酶(SOD)的变化,分析TIPSS术后自由基变化肝性脑病关系

    Objective:To study the relationship between free radical and hepatic encephalopathy after TIPSS by examing MDA in hepatic tissue and SOD in blood.

    youdao

  • 介绍肼、羧酸合成酰基氮化合物方法。

    Synthesis of acyl azide from aldehyde, or acylhydrazine, or carboxylic acid , or acyl chloride, or anhydride, or ester is introduced in this paper.

    youdao

  • 研究表明,芳醛上取代基不同卟啉合成磺化试剂离解平衡有一定的影响

    It was found that the substituent attached at the phenyl exerted influence on the yields of synthesis, on the experimental conditions of sulphonation and on the acid-base properties of the reagent.

    youdao

  • 发明公开了种由吡咯芳香空气原料高产合成四芳卟啉的方法设备

    The invention discloses a method and an apparatus for the synthesis of tetaraary porphyrin at high yield with raw materials including pyrrole, aromatic aldehyde and air.

    youdao

  • 各种芳香二酸各种二乙烯基化合物有机溶剂存在下加热反应得到新型缩醛聚合物

    Various aromatic diacids and various divinyl ether compounds are heated to react in organic solvent to obtain novel ester acetal polymers.

    youdao

  • 为底物,通过丁基三溴化铵(TBATB)氧化原位生成亚胺转化为氰基化产物。

    Nitriles were obtained from aldehydes through oxidation of in situ formed the corresponding aldimines using tetrabutylammonium tribromide (TBATB).

    youdao

  • 甲基硅基丙基与醛反应产率71-84%。

    The yields of products for reaction of trimethylsilyl propargyl bromide are 71-84%.

    youdao

  • 我们二茂铁乙炔、芳香醛尿素三组分一锅煮反应要得到二茂铁基得4H-1,3-

    We experimented by the one-pot reaction of ethynylferrocene, Arylaldehydes and Urea, wanted to the ferrocene-containing 4H-1,3-Oxazines.

    youdao

  • 常用的羟基保护基归纳三类:酯类、醛或缩酮类。

    The hydroxyl groups can be changed into esters, ethers, acetals and ketals, etc.

    youdao

  • 浓硫酸改性活性炭催化剂,以苯甲醛乙二醇为原料合成苯甲醛乙二醇醛的反应条件进行了研究。

    Using concentrated H_2SO_4 modified coal based activated carbon as catalyst, benzylaldehyde glycol acetal was synthesized from benzylaldehyde and glycol.

    youdao

  • 浓硫酸改性活性炭催化剂,以苯甲醛乙二醇为原料合成苯甲醛乙二醇醛的反应条件进行了研究。

    Using concentrated H_2SO_4 modified coal based activated carbon as catalyst, benzylaldehyde glycol acetal was synthesized from benzylaldehyde and glycol.

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定