合成

Based on the generally accepted enol and carbide mechanismes of the FTS, the above model was derived, and the inhibition of water was interpreted in terms of the heat of adsorption for the combined term b in the denominator of the kinetic equation.

本文就是结合煤化所煤基合成液体燃料的过程开发，对已工业化的FT合成沉淀Fe/Cu/K催化剂进行反应动力学、有效因子的计算和管式固定床反应器数学模型的研究，结果可分述如下： 1。

Results:The expression of eNOS,VEGF and CD34 in endometriosis was higher significantly than that of normal endometrium.

内皮型一氧化氮合成酶主要分布于神经细胞和内皮细胞中，是生理情况下合成NO的主要来源[2]。

The efficient first asymmetric syntheses of-6β-hydroxy-7αH-eudesm-4-en-3-one, and its C-6 epimer were achieved starting from-dihydrocarvone, whichprovide a novel and efficient synthetic method to 6-oxgenated eudesmanes.

以-二氢香芹酮为原料，经五步反应，首次完成了6β-羟基-4(5)-烯-3-羰基桉烷及其6位差向异构体的立体选择合成，并为C-6位含氧官能团取代桉烷类化合物的合成提供了一种简便有效的方法。

This paper has studied the esterification of isopropanon and salicylic acid in the presence of boronic acid.

以硼酸为催化剂合成水杨酸异丙酯，发现硼酸对水杨酸异丙酯的合成具有良好的催化活性。

Recent development in hydroformylation of ethene to propanal by catalytic synthesis is introduced in this paper.

目前世界上工业化生产丙醛多采用乙烯氢甲酰化反应催化合成，即用乙烯、CO和H2 在催化剂作用下合成丙醛。

A better understanding of the role of PPAR in insulin action system will be critical in developing more efficacious and safe agent s that act on PPAR and benefit patients with type 2 diabetes. The main content is followed: Synthesis and analysis of 1,3-dicarbonyl compounds. Make use of easily available cheap reagent such as 2-naphthol, 6-hydroxyquinoline, 1,2-dibromoethane, 4- hydroxybenzaldehyde, dimethyl malonate, 2-{4- [(2-napthoxy)ethoxyl] benzyl} malonates and 2-{4 [(1,2,3,4-tetrahydro-6 -quinolinoxy)ethoxyl] benzyl } malonates were synthesized through 6-8 steps in virtue of Williamson, Knoevenagel reaction, Pd/C catalyzed hydrogenation with mild conditions and high yield. The total yield of 40-50%.

本论文的主要内容和研究结果如下： 1，3-二羰基类化合物的合成及分析，采用2-萘酚、6-羟基喹啉、1 ，2二溴乙烷、对羟基苯甲醛、丙二酸二甲酯等常见易得试剂，利用Williamson反应、Knoevenagel反应、钯碳加氢等条件温和且收率高的方法，分别合成了2-{4- [(2-萘氧)乙氧基]苄基}丙二酸衍生物和2-{4 [(1，2，3，4-四氢-6-喹啉氧基)乙氧基]苄基}丙二酸衍生物两个系列8个化合物，经6-8步反应，总收率为40-50%，具有一定绿色化学特性。

The results show that these derivatives can be obtained in the yield of over 90％ in the presence of DMF when using ethyl acetate as a catalyst.

结果表明，以N，N-二甲基甲酰胺为溶剂，以乙酸乙酯为催化剂的合成路线，均可以以90％以上的得率合成出上述化合物。

AlCl3-MEIC was prepared by reacting 1-methylimidazolium and ethyl chloride ,and the best situation of synthesis was confirmed.

2应用正交实验法确定了合成1—甲基—3—乙基氯化咪唑这种有机盐的最佳反应条件，并成功地合成了这种有机盐。

Naphthol ethyl ether was sythesized with the ethanol and β-naphthol as materials and aluminium sulfate as catalyst.

介绍了以乙醇和β-萘酚为原料，在硫酸铝Al2(SO43.18H2O催化下合成β-萘乙醚的方法，讨论了反应时间，催化剂用量以及反应物摩尔比对合成的影响，确定了最佳反应条件。

The advantage and disadvantage of synthesis of ethyl lactate from different raw materials and by different methods are discussed.

总结了以不同原料和不同方法合成乳酸乙酯的优点和不足，对乳酸乙酯合成的发展趋势进行了展望。

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