合成

The method of photocatalysis with TiO_2 catalyst is not only used in the filed of dealing with pollutants, but also has some potential in the field of chemosynthesis because it is usually employed at normal temperature and normal pressure for chemosynthesis without second pollutants.

以TiO_2为催化剂的光催化法不但已经应用于环境污染处理领域，而且也开始在化学合成领域逐渐显示潜力，这无疑会给化学工业带来新的憧憬，因为光催化合成通常在常温常压进行，易操作，一般不会产生二次污染。

First, the preparation of l,2-dichloro-4-nitrobenzene, which l-chloro-4-nitrobenzene reacted with chlorine in a self-designed chlorinator, in presence of Lewis acid catalyst,.was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield of l,2-diehloro-4-nitrobenzene was 83.26%.

为此，本文首先在自行设计的塔式氯化器中，以对硝基氯苯为原料，路易氏酸作催化剂，分子氯氯化合成3，4-二氯硝基苯(合成3-氯-4-氟-硝基苯的原料)，根据该氯化过程特征，利用正交试验设计方法结合单因素实验考察了有关因素对氯化过程的影响，优化得到了最佳的氯化工艺条件，3，4—二氯硝基苯的收率可达83.26％。

The side-chain liquid crystal polymacrylate was synthesized by free radical polymerization form the acrylate monomer which was generated from p-hydroxy benzoic acid, ethylene chlorohydrin and acrylic acid by etherification, esterification and chloration.

以对羟基苯甲酸、氯乙醇和丙烯酸为主要原料，经醚化、酯化和酰氯化反应合成了中间体和含液晶基元的丙烯酸酯单体，后者经自由基聚合合成了聚丙烯酸酯侧链液晶聚合物。

This technique pro-duced not only N-phosphonomethyliminodiacetic acid with high quality but also a great deal of chloromethane by the hydrolyzation of dimethyl phosphite and methylal .

提供了一种利用亚磷酸二甲酯残液(亚磷酸二甲酯生产过程中的副产)和甲缩醛(甘氨酸法生产草甘膦过程中的副产)为原料来合成双甘膦的方法，采用该工艺可以合成高含量的双甘膦，而且利用亚磷酸二甲酯残液和甲缩醛的充分水解可生成大量的氯甲烷，从而大大提高上述副产物的综合利用价值，具有很好的发展前景。

The effects of particle distribution of fly ash from a MSW incinerator on de novo formation of dioxins with the use of organic/inorganic chorine sources and the relative action of different chlorine sources in de novo formation are studied.

选用煤和垃圾混烧的焚烧炉飞灰，研究了飞灰粒径分布对有机／无机氯源从头合成中二噁英生成的影响，以及不同无机氯源在从头合成中的相对作用。

In the first part, twelve peptides, including eight conservative amino acid residues in the amino acid sequence of hydrophilic S helix of AOX. were synthesized by solid-phase method. The polypeptide was coupled to a -chymotrypsinogen, and the antibodies were obtained through immunizing rabbit by injecting this complex.

第一部分，我们按照交替氧化酶(Alternative Oxidase，AOX)位于线粒体内膜外侧亲水区S螺旋的氨基酸序列，用固相法合成由12个氨基酸残基组成的多肽，将此多肽与α-牛胰凝乳蛋白酶原A相连，用作半抗原，免疫家兔制备人工合成12肽的抗体。

Amino(9-deoxy)epicinchonine was synthesized from cinchonine through the Mitsunobu reaction and was treated with p-toluenesulfonyl chloride,4-chlorobenzene sulfonyl chloride respectively to give two new chiral sulfonamide s.

以辛可宁为原料，经Mitsunobu反应合成了9-氨基(9-脱氧)表辛可宁，然后分别与对甲苯磺酰氯、对氯苯磺酰氯反应，合成了两个新手性磺酰胺，其结构经红外光谱和核磁共振确证。

Amino(9-deoxy)epi cinchonine was synthesized from cinchonine through the Mitsunobu reaction and was treated with p-toluenesulfonyl chloride,4-chlorobenzene sulfonyl chloride respectively to give two new chiral sulfonamides.

以辛可宁为原料，经Mitsunobu反应合成了9-氨基(9-脱氧)表辛可宁，然后分别与对甲苯磺酰氯、对氯苯磺酰氯反应，合成了两个新手性磺酰胺，其结构经红外光谱和核磁共振确证。

Methods: The effects of the ratio of reactants, the amount of the catalyst used, the reaction time and the amount of an water-taking agent on synthesizing isoamyl cinnamate were investigated to obtain a suitable condition for synthesizing the ester.

考察了醇酸比、反应时间、带水剂用量等因素对合成肉桂酸异戊酯的影响，得到合成该酯的较适宜条件。结果：最佳反应条件为n：n=5：1，催化剂用量为肉桂酸用量的20%，反应时间2h，反应温度110～118℃，酯收率可达76.6%。

The tattle unifies in recent years study on the synthesis of cinnamate of the status quo and application prospect,the use of activated carbon as carrier of phosphotungstic heteropoly acid catalyst for catalytic synthesis of cinnamic acid ester had a preliminary inquiry,and the results were satisfactory.

中文摘要：本文结合近几年合成肉桂酸酯的研究现状及应用前景分析，采用磷钨杂多酸作催化剂活性炭为载体催化合成肉桂酸系列酯进行了初步探究，并且结果令人满意。

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。