烯化

The carbonylation of olefins developed by Reppe is an important method to prepare a considerable nu...

烯烃的羰基化反应是合成一系列含氧有机精细化学品的重要方法。

Keywords tungsten trioxide;zirconia;solid acid;benzene;1-hexene;alkylation;potassium;strontium

氧化钨；氧化锆；固体酸；苯； 1-己烯；烷基化；钾；锶

Using this reaction, a three-component reaction to synthesize tetrahydrofuran derivatives was studied.

另外我们还对炔烃碳钯化启动的烯炔偶联反应进行了初步的探索。

In fact only by considering benzene to be a resonance hybrid comprising at least a pair of cyclohexatriene resonance structures can we come at all close to an accurate picture of the real molecule.

事实上，只有把苯看作是至少由一对环己三烯共振结构（叫做 Kekule 结构）组成的共振杂化体，我们才能全面接近真实分子的精确图像。

Type shown above, the lower temperature as allyl methyl carbocations (1) is greater than the stability of carbocations (2), so the potential energy diagram in the reaction pathway for the carbon embodied in the positive ion hybrid resonance body and Chloride Cl-if by 1,4 - addition will have to experience higher ...

如上式所示，较低温度下由于烯丙基甲基碳正离子(1)的稳定性大于碳正离子(2)，所以在反应历程势能图中体现为碳正离子共振杂化体与氯离子Cl-若按1，4-加成则要经历较高。。。

It occurs at the carbon-carbon triple bond in a highl regioselective manner. Therefore, the reaction not only expanded the synthetic applications of Diels-Alder reaction but also provided a facile and efficient synthetic procedure for the synthesis of 4-functionalized quinoline derivatives.

上述反应实现不仅扩展了Diles-Alder反应在有机合成的应用，同时喹啉类化合物4-位上官能化的二硫缩烯酮基团也为其4-位取代打开了大门，为合成各种4-取代喹啉类化合物开辟了一个简洁高效的方法。

Teflon: Trademark for a polymer of tetrafluoroethylene fluorocarbon.

铁氟龙：四氟乙烯或氟化的乙烯－丙烯的聚合物的商标名。

The experiment results indicated that the hydroformylation of C〓 straight chain higher olefins could well conduct under TPSC system.

实验结果表明，温控相分离催化体系可很好地催化C〓直链高碳烯烃氢甲酰化反应。

Series of crosslinked polymers containing POSS were synthesized in this thesis. The main contents include three parts as follows:(1) The preparation of different POSS molecules containing multiple functionalgroups and the development of crosslinked polymers containing POSS were reviewed in detail.

2合成了一种多功能团的POSS分子(T_8H_8)及四种不同长度的双烯功能团有机小分子，这些有机小分子可以通过硅氢化反应与POSS形成交联聚合物，在聚合物中作为连接链将POSS分子连接起来。

However, when the ageing temperature increased to30℃ and the polymerisation performed at 60℃, some traces of polydicyclopentadienewere obtained.

然而，当陈化温度升到30℃，聚合过程在50℃下进行，可以得到痕量的聚双环戊二烯。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新