查询词典 synthesize

Transesterification of geranol and vinyl acetate in ionic liquids were investigated to synthesize geranyl acetate using immobilized Candida antarctica lipase B as biocatalyst. The reuse of ionic liquids and lipase were also studied in this reaction.

以固定化的南极假丝酵母脂肪酶为催化用酶催化香叶醇和乙酸乙烯酯在离子液体中的酯交换反应，合成了香料乙酸香叶酯，同时通过该反应了解了酶和离子液体的重复利用性。

Carbamide reacting with H2SO4 forms aminosulfonic acid. Allantoin is prepared by oxidation of the aqueous solution of glyoxal into glyoxylic acid which is then used to synthesize allantoin.

氨基磺酸的合成是用尿素和发烟硫酸反应；尿囊素的合成是用硝酸氧化乙二醛溶液制得乙醛酸后，再加入氢氧化钙和氯化钙，使乙醛酸以钙盐形式析出，然后在盐酸介质中与尿素缩合而成。

Sintering experiments in different atmospheres suggest that N2 atmosphere is the best to synthesize hercynite.

不同气氛下烧成试验显示N2气氛是合成铁铝尖晶石的最佳气氛。

The study sum up a synthesized route which synthesize (2E,4E)-1,6-bis(3-aminopiperidin-1-yl)hexa -2-4-diene-1,6-dione easily.

总结出了一条反，反-1，6-（R-3-氨基哌啶基）粘糠酰氨的一条合成路线，为国内外同行在合成反，反-1，6-（R-3-氨基哌啶基）粘糠酰氨及其性能研究方面提供了大量得数据，为同行们在合成和更深入的研究反，反-1，6-（R-3-氨基哌啶基）粘糠酰氨提供有限的参考，以互相学习交流。

To the degree that the astrologer identifies his horoscopical findings with the law of "as ye sow, so shall ye reap" will he be able to synthesize correctly the chart in its entirety, will he be able to reduce past causes of present conditions, will he be able to determine the potential solutions of difficulties.

作为占星家通过&种瓜得瓜种豆得豆&法则鉴别出的星盘上的发现物的角度，使他能够正确地合成整个星盘，使他能够还原导致现在条件的过去的原因，使他能够决定解决困难的可能的方法。

Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.

对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸；再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯；以氟化钾为氟化剂，环丁砜为溶剂置换氟化，再与甲醇酯化得到四氟对苯二甲酸甲酯；以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇；以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物；在乙醇溶液中经镁粉还原得到4-甲基-2，3，5，6-四氟苄醇；甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯，总收率达43.6%。

We studied the fluorescent capability of Binolate lanthanide complexes. Thefluorescent analysis shows that both ligand and complexes exhibit luminescence. Insolid state and solution, they have the different luminescence mechanism, intensity andcolor. So we can synthesize the complexes of dissimilar fluorescence performance bychanging the state and solvent polarity. According to the literatures, the complexes playan important role in luminescence material and probe with the development of theinformation technique.

对合成的八个邻萘酚稀土配合物进行发光性能研究，通过荧光光谱分析显示，配体和配合物都能够发出荧光，并且在固体状态和溶液中的发光机制、光强度及发光颜色都不同，所以通过改变邻萘酚稀土配合物的状态以及所选溶剂极性的不同，可以得到荧光性能不同的邻萘酚稀土配合物；根据查阅的文献可知，这类配合物在发光方面的应用很少，所以在当前信息显示技术高速发展的今天，邻萘酚类发光稀土配合物在发光器件、荧光探针等材料的研究领域当中不仅具有理论意义还有实际的应用价值。

AI is an intersectant and fringe knowledge,which synthesize many other relative knowledges.

因此，人工智能实际上是一门综合性的交叉学科和边缘学科。

The way to prepare iodomethane using methanol, potassium iodine and acid as regents has the disadvantages such as many side reactions and low yield, while the synthesize route from dimethyl sulfate and potassium iodine has the advantages of high yield and simple separation.

醇与氢卤酸作用是制备卤代烃的常用方法，以甲醇为试剂，以碘化钾与酸作用生成氢碘酸制备碘甲烷的方法存在副反应多、收率不高的特点；而以硫酸二甲酯及碘化钾为试剂的合成路线具有操作容易、收率高、纯化简单的优点。

Tri (2-hydroxyethyl) isocyanurate was used as the curing agent to synthesize the polyurethane elastomer modified by isocyanurate.

以三（2-羟乙基）异氰脲酸酯为固化剂，用异氰脲酸酯环合成改性聚氨酯弹性体。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。