烯

The compoud 1 can be converted to intramolecular coupled cyclic olefine (2) as a main product in the presence of iron catalyst.

控制反应条件，在铁催化下可以生成偶联烯烃化的环烯产物(2 )为主要产物；不加催化剂，加热回流反应得到分子内亲核取代反应产物环丙烷化合物 3

The catalyst of RFG-DQ and DOCO(1) can both reduce the olefine content of gasoline dramatically, with the yield of LPG ,diesel and coke reduced and the yield of gasoline increased, as well as octane number of gasoline reduced more greatly.The olefine content of gasoline can be effectively reduced by optimizing the operation condition, lowering the reaction temperature, increasing the catalyst-to-oil ratio and using catalyst, which can improve the gasolines quantity and upgrade the gasoline.

通过优化操作条件、降低反应温度、增大剂油比和采用有效降烯烃催化剂等措施可以有效的降低催化裂化汽油的烯烃含量，提高催化裂化汽油的产品质量，达到我厂汽油产品升级换代的目的。

For thermally curable etch-resist inks comprising an activated olefinic group the activated olefinic monomer preferably contains a metal chelating group.

对于热固化刻蚀抵制油墨组成一组激活烯烯单体的活性最好包含一个金属螯合组。

Olefinic oxides,such as epoxides,ketones and aldehydes mainly prepared by oxidation of olefines,are important chemical intermediates, which are widely used in fine chemicals,polymer materials,organic synthesis,perfumer and medicament.

烯烃的氧化物是重要的化工原料，主要通过烯烃的氧化反应得到，广泛应用于精细化工、高分子材料、有机合成香料及医药等行业。

The osmium-catalyzed asymmetric dihydroxylation of olefins provides one of the most effective methods for the preparation of vicinal diols. Almost all kinds of olefinic substrates can be transformed to the corresponding diols by means of AD reaction. The chiral osmium catalyst is generated in situ by the chiral ligand complexing with OsO〓 in the reaction.

手性锇催化剂催化的烯烃不对称二羟基化反应是合成手性邻二醇最有效的途径之一，可以将几乎所有类型的烯烃转变成相应的手性邻二醇，因此广泛地应用于药物、天然产物以及精细化工产品的合成。

This dissertation concentrated on its low-cost synthesis, adjusting of silica to alumina molar ratio and catalytic applications in olefinic alkylation of thiophenic sulfur of simulated FCC gasoline and aromatization of butene in liquefied-petroleum-gas process.

本论文旨在降低MCM-22合成成本，获得硅铝比范围宽泛可调的MCM-22，并拓展其在烯烃烷基化脱硫与液化气丁烯芳构化方面的应用。

Brominated butyl rubber was prepared by solution method,and its microstructures were characterized by 1H-NMR. It has three main microstructures,that is the unbrominated isoprene structure,the exomethylene allylic bromide structure (structure Ⅱ) and the bromomethyl olefinic structure (structure Ⅲ).

通过溶液法制备溴化丁基橡胶，并用核磁共振对溴化丁基橡胶的微观结构进行了分析，其中存在3种主要微观结构，即未溴化的丁基橡胶结构，溴代仲位烯丙基结构及溴代伯位烯丙基结构。

The electron impact mass spectra of the chemical products modified by 2-amino-2-methylpropanol of the fatty acids in sunflower oil were analyzed; the allocation rule for the carbon double bonds in olefinic acids was discussed and the location of the carbon double bonds of the fatty acids in sunflower oil was confirmed.

解析了葵子油脂肪酸2-氨基－2-甲基－丙醇化学修饰产物的EI质谱图，讨论了烯酸中碳碳双键的定位规则，确定了葵子油脂肪酸中碳碳双键的位置鉴定出葵子油6种脂肪酸，不饱和脂肪酸相对含量为89.41%，其中人体必需脂肪酸9，12-十八碳二烯酸含量占65.30%。

Selected novel olefinic orthoesters, may be copolymerized with other olefins using certain late metal transition catalysts, to form novel polyolefins containing orthoester pendant groups.

利用某些后过渡金属催化剂，可以使选择的新颖烯烃原酸酯与其它的烯烃共聚合，以形成含原酸酯侧基的新颖聚烯烃。

The Suzuki reaction, the coupling of organoborate compounds with organic electrophiles catalyzed by Palladium complexes, is a valuable Csp2-Csp bond forming reaction. The reaction has been drawing increased attention in that the reaction permit the use of organoboron compounds that are thermally stable and inert to water and oxygen.In this section microwave promoted Suzuki reaction of phenylboronic acid with benzyl halides catalyzed by Pd(PPh3)2Cl2 DMF/H2O(v/v=10 : 2) was first reported.

第四章：微波辐射下Pd配合物催化端烯与芳卤偶联反应研究本章中我们在微波辐射条件下，研究了PdclZ(P Ph3)：催化端烯与芳卤的偶联反应，合成出了七种乙烯基化合物；并分别考察了微波辐射功率、辐射时间、原料配比、和PTc等因素对反应的影响，优选出了较佳的反应条件，并根据文献及实验结果，讨论了可能的反应机理。

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。