查询词典 synthesis

The synthesis of chiral pharmaceuticals is a hot issue of the development in pharmaceutical in the world,asymmetric hydrogenization of which is the successful technology in the chiral synthesis .

手性药物的合成是目前全球药物开发研究的热点，而不对称氢化是手性合成中最成熟的技术。讨论了不对称氢化技术在镇痛类、抗生素类、抗菌类、抗忧郁类以及维生素类等9类手性药物合成中的实际应用

Process condition study of synthesis of starch of hydroxamic acid type;2. By study of hydroxamic acid synthesis and red mud settling behavior,its high clarified degree was described.

氧肟酸型絮凝剂是近年来国外研制出的一种新型高效絮凝剂，在铝土矿制备氧化铝生产中对赤泥颗粒有很强的聚合力。

Comparing with the traditional way of stronger sulfuric acid ,The catalyst has its advantage of more effective on the synthesis,the operation is more safer, does not corrode the equipments and does not pollute the environment,and the recovering operation is simple. So it can be called a green method on synthesis of isobutyl acetate.

该催化剂与传统浓硫酸法相比，催化效果更好，作更安全，对设备无腐蚀，对环境无污染，实现了催化剂的重复利用，并且回收作简单，重复利用率高产率好，达到绿色合成乙酸异丁酯的目的。

One zeolite capsule catalyst with a new core (Co/Al2O3)/shell(H-beta membrane) structure was prepared and utilized for the middle isoparaffin direct synthesis via Fischer-Tropsch synthesis reaction.

制备了一种具有Core (Co/Al2O3)/Shell结构的沸石胶囊催化剂，并用来在费托合成反应中进行异构烷烃的合成。

Acidic ion-acidic resin can also be used as a catalyst for organic synthesis, it's used instead of concentrated sulfuric acid can be catalyzed synthesis of dihydro-coumarin compounds [1], High purity isopropenyl acetate [2] and other organic compounds.

酸性离子酸性树脂也可作为一种有机合成催化剂，用它替代浓硫酸可催化合成二氢香豆素类化合物[1]，乙酸异丙烯酯[2]等有机化合物。

In this paper,several synthesis methods of isothiocyanates were summarized as well as its application in synthesis of compound and biotechnology.

异硫氰酸酯作为一类重要的有机合成中间体，其制备及应用受到广泛关注。

The former is necessary for equilibrium-controlled synthesis of peptide bonds while the latter is necessary for kinetically controlled synthesis of peptide bonds.

酰胺酶活性起水解或合成肽键的作用，因而对平衡控制的肽键合成是必需的；酯酶活性起转移酰基的作用，因而对动力学控制的肽键合成是必需的。

Series recording, cartoon voice-over Set works Advertising categories: Jiaoen Jun speak of the "Li Wang Men Italian" music He Jiong speak of "the speed of light sport shoes" music Jiemin speak of the "Kang riding sports shoes," music "Lili potato chips" advertising music China's famous performing artists Zhibing speak of the "Prestige Bird" men's music system Such as Cartoon categories: the "ship-culture" music "JACKIE kilometers klippe" sound recording and music production "Wohu queue" music "Ancient adventure" music Game categories: online games "sea of movement," complete music, sound effects Online games "street football" music video Online games "Anchao" full audio production Drama series category:"emblem mother WAN heart" Taiwanese version of sound recording and Synthesis "Spring stepmother heart" Taiwanese version of sound recording and Synthesis Enterprise songs of the Astra Astra of Xiamen International Arts Limited, the corporate song "ARTREE" Part QU Xiamen gifted Thai Health Technology Limited, enterprises song,"You Thailand" Arranged 2006 cross-strait Tanabata hand large-scale activities theme song "Tanabata love" Arranged

作品集 广告类：焦恩俊代言的《意利王男装》的音乐制作何炅代言的《光速运动鞋》的音乐制作房祖民代言的《康踏运动鞋》的音乐制作《丽丽薯片》广告音乐制作国内著名表演艺术家刘之冰代言的《珍贵鸟》男装的音乐制作等卡通类：《船文化》音乐制作《济公之飞来峰》录音及音乐制作《卧虎长龙》音乐制作《远古大冒险》音乐制作游戏类：网游《海之乐章》全套音乐，音效制作网游《街头足球》宣传片音乐制作网游《暗潮》全套音效制作等连续剧类：《徽娘宛心》闽南语版录音及合成《春天后母心》闽南语版录音及合成企业歌曲厦门雅特力雅特力国际艺术有限公司，企业歌曲《ARTREE》编曲厦门优泰健康科技有限公司、企业歌曲《优泰人》编曲 2006年海峡两岸七夕牵手大型活动主题曲《七夕情缘》编曲

The dissertation mainly consists of two parts:1. The Reaction Chemistry of Alkynes under Palladium Catalysis Part 1 studies the reaction α,β-unsaturated carbonyl compounds with alkenylpalladium intermediate generated by nucleopalladation, and discovered 1 the Pd-catalyzed tandem addition reaction of halides, alkynes and α,β-unsaturated carbonyls,2 the four-component tandem addition reaction of halides, alkynes and α,β-unsaturated carbonyls, 3 the tandem intramolecular oxypalladation-conjugate additionreaction of alkynoic acids with α,β-enals. These new reactions provide notonly efficient highly stereoselective methods for the synthesis of γ,δ-unsaturated,polyunsaturated carbonyl compounds and γ-lactonic aldehydes, but also thebasic transformations for a number of C-C bond formation reactions which can be usedto design synthesis of many acyclic, cyclic or polycyclic compounds.

本论文的主要工作分为两个部分：一、钯催化下炔烃的反应化学在本小组前人工作的基础上，我们详细研究了炔烃亲核钯化产生的烯基钯中间体与α，β-不饱和羰基化合物的反应，发现两价钯催化下卤离子-炔烃-α，β-不饱和醛酮的串联加成反应、卤离子-炔烃-α，β-不饱和醛酮的西组分串联加成及炔酸分子内氧钯化-串联Michael型加成反应；由此发展了γ，δ-不饱和醛酮、多不饱和羰基化合物和带有醛酮基侧链的γ-丁内酯衍生物的高立体选择性合成方法，这一过量卤离子存在下的烯基钯对α，β-不饱和羰基化合物共轭加成反应的发现，为大量碳-碳键形成反应的实现提供了基础，使我们能够从这一基本反应出发，设计和开发多种分子内、分子间的碳碳成键反应，以好的立体、区域选择性组建开链、环状及多环类型的化合物。

Synthesis and chracterization of high ordered Ladderlike Polysilsesquioxane Since Brown first reported the synthesis of ladderlike polyphenylsilsesquioxane via "thermal equilibration polymerization"in 1960, it is still a question whether ordered ladderlike polysilsesquioxane can be prepared or not all over the world till now.

第一部分高规整性梯型聚硅氧烷的合成1960 年Brown 首次报道了用&热平衡缩聚法&合成含梯形结构的聚苯基倍半硅氧烷，但该报道受到许多研究者的质疑。至今40 多年来对能否合成真正规整梯形结构的聚倍半硅氧烷一直存在着争议。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失