环烯

When the proportion of the aryl halides was changed,the aromatic products with different number substitutes could be obtained.

通过研究我们发现，活泼酰基与烯丙基在偶联反应中活性相当，可得到不同成环方式的产物，且当改变卤代物比例时，将得到不同数量取代芳烃的产物。

Objective:To research on the anti-inflammatory mechanism of the acidic components of Aubergine root.

环氧化酶(cyclooxygenase，COX)是催化膜磷脂花生四烯酸转化为前列腺素类物质的限速酶。

Toward this end, the olefin 51 was treated with cyanogen azide and, indeed, produced the ring expanded ketone 52

为了证明这一看法，他用氰化迭氮处理烯烃(51)就得到扩大的环酮。

Results showed that Chinese bayberry fruit could be stored for 13 days at 0℃ and for 5 days at 20℃, respectively.

杨梅果实在0℃下分别用0、1、5和10ìl·L-11-甲基环丙烯(1-MCP)处理15h后，分别在0和20℃下贮藏。

Topological resonance energy and bond resonance energy methods were applied to all the open structure isomers of C36CH2 to investigate their aromaticity.

用键共振能和拓扑共振能方法对富勒烯C36CH2开环结构中的所有可能异构体及其阳离子和阴离子芳香性进行了研究。

Corporation Shanghai Jiao Tong University's latest research results, primarily engaged in 3 - butene -1 - alcohol, 1,2,4 - Tromethamine, six three phosphazene ring chlorine production and marketing.

公司依托上海交通大学的最新科研成果，主要从事3-丁烯-1-醇，1，2，4-丁三醇，六氯环三磷腈的生产销售。

Flavor substances of pumpkin were qualitatively analyzed and 22 kinds of chemical components were identified by GC-MS. The main compounds extracted are Bornyl acetate, Camphol and 4-methy- Phenol, respectively.

首次对南瓜(6号京银栗)进行了芳香物质的定性测定，发现南瓜中含有22种芳香性成分，主要为醋酸冰片酯、樟脑、四甲基苯酚、4，6，6-三甲基-双环[3.1.1]-3-庚烯-2-酮。

To explore the application of capillary gas chromatography in the determination of dicyclopentadiene in the Air.

目的 探讨以毛细管气相色谱法测定工作场所空气中的二聚环戊二烯。

Ingredients: Rose oil, rose fruit Oil, clove flower oil, deionized water, isopropyl myristate, glycerol, propylene glycol, polyethylene glycol -400, central PDMS, poly dimethyl siloxane, PDMS alcohol, polyacrylamide, C13-14 iso-paraffin, octoic acid / capric Acid Triglyceride, lauryl alcohol -7, hydroxyethyl acrylate, acryloyldimethyltaurate copolymer, squalane, poly sorbate esters -60, PEG-20 sorbitan laurate, panthenol, allantoin, methyl p-hydroxybenzoate, diazolidiny1 urea, 3-iodo-2-propynyl-butyl-carbamate, essence.

产品成分：玫瑰精油、玫瑰果油、丁香花油、去离子水、肉豆蔻酸异丙酯、甘油、丙二醇、聚乙二醇-400、环聚二甲基硅氧烷、聚二甲基硅氧烷、聚二甲基硅氧烷醇、聚丙烯酰胺、C13-14 异链烷烃、辛酸/癸酸甘油三酯、月桂醇醚-7、羟乙基丙烯酸酯、丙烯酰二甲基牛磺酸钠聚物、角鲨烷、聚山梨酸酯类-60、PEG-20 失水山梨醇月桂酸酯、泛醇、尿囊素、对羟基苯甲酸甲酯、双咪唑烷基脲、碘代丙炔基丁基甲氨酸酯、香精。

Lactam was gained by the Staudinger reaction of imine and olefineketone in the presence of N-heterocyclic carbene catalyst.

以N-杂环卡宾催化剂1催化亚胺与烯酮之间的Staudinger反应，得到相应的β-内酰胺。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。