烯丙基

For example,the addition reaction with small molecular,the metathetical reaction with alkynes and Wittig reaction to prepare high-valent transtion-metal allenylidene complexes.

对于化合物11，详细研究了其与小分子加成反应、炔烃复分解反应以及通过Wittig反应制备高价态过渡金属丙二烯基卡宾化合物。

A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 1 to 99 percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 99 to 1 percent of one or more alkoxysilane compounds.

一种用于丙烯聚合的催化剂组合物，包括：一种或多种齐格勒-纳塔主催化剂组合物，该齐格勒-纳塔主催化剂组合物包括一种或多种过渡金属化合物和一种或多种芳族二羧酸酯内部电子给体；一种或多种包含铝的辅催化剂；和两种或更多种不同的选择性控制剂的混合物，所述SCA混合物包括1到99％的一种或多种芳族单羧酸的一种或多种酯或其取代衍生物、和99到1％的一种或多种烷氧基硅烷化合物。

The effects of spatial hindrance , solvent, free volume were investigated. The result showed that the structure of graft copolymers exhibit a marked influence on photoisomerization.

另外，邻位被丙烯酰氧基取代的偶氮聚合物还表现出光致变色性禁阻，这说明空间位阻起了一个非常重要的作用。

New compounds of the type of unsymmetrically substituted ureas are synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with aromatic amine.

以3 苯基 2 丙烯酸为原料，用Curtius重排的方法合成异氰酸酯，直接与芳香胺作用，合成了5 种N 取代苯基 N′苯丙烯基脲类化合物。

The chemical components of volatile oil from Foemiculum Vulgare Mill were determined by GC-MS.

用GC－MS方法测定了小茴香挥发油的全组分，其中对-丙烯基茴香醚的含量为82.65%。

The effect of emulsifying agent and neutralisation level on the stability of the polymeric system was investigated.

以丙烯酰氧基Span-80为乳化剂，采用反相乳液聚合法合成了高分子量聚丙烯酸钠。

Compared with the present process for the synthesis of acrylate by esterification of acrylic acid, which comes by oxygenation of propylene, the process by the carbonylation of acetylene to acrylic acid and its esters pays less cost, and so, is worth to be studied.

相对于目前主张的丙烯氧化法生产丙烯酸，再酯化生产丙烯酸酯的主流工艺，乙炔羰基化法合成丙烯酸及酯的工艺具有很好的经济性应用价值。

N-Benzylacryl amide was synthesized using acrylonitrile and benzyl alcohol as raw materials and sulfuric acid as catalyst.

以丙烯腈和苯甲醇为原料，浓硫酸作催化剂，合成了N-苄基丙烯酰胺。

A concentration of 2.5 micrograms per millilitre was effective at reducing the acrylamide-induced ROS production, as well as the preventing the fragmentation of DNA, and effects of cytotoxicity, report Cao and co-workers.

曹及其同僚表示，浓度为2.5微克/毫升的姜黄色素就能有效的减少由丙烯酰胺引起的活性氧自由基的产生，从而可以防止DNA的裂解，同时有效阻止细胞毒素。

Although many researchers have studied the synthesis of allyl phenyl ether by phase-transfer catalysis, no studies have used it in membrane reactor up to now. The purpose of this paper is to combine the studies of membrane reactor and phase-transfer catalysis. The membrane was used to stabilize the aqueous/organic interface at a fixed position, also the quaternary ammonium ion in the membrane was used as the catalyst to partake in the reaction system directly, and so it can also separate the product and reactants at the same time. A theoretical model is also presented.

中文摘要对於利用相间转移触媒催化技术来合成丙烯基苯基醚的反应，已有不少专家学者研究过，而至今还无在薄膜反应器中进行此反应之研究，本研究则是要结合薄膜反应器与相间转移触媒两者之特性，固定水油两相之界面，并且利用薄膜上的四级铵离子为触媒，直接在反应系统中参与反应，并同时分离产物及反应物，进而推导出相关之理论模型。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。