合成

The reaction of cyclic b-keto esters with CF3CO2ZnCH2I provides the corresponding ring-expanded products with the advantage of mild condition in moderate to good yields. A simple and efficient procedure has been developed for a variety of 1,3-diketones converted into the corresponding 1,4-diketones and trans-1,2-disubstituted cyclopropanols in high yields. In conclusion, this new type of organozinc reagents has been developed for many useful reaction in organic synthesis.

利用有机锌试剂所具有的双重特性，在新型的Baylis-Hillman反应中，可以直接与炔基酮和醛反应一锅制得多官能团的三取代的顺式烯；在b-酮酯化合物的扩环反应中，取得了重要进展，得到了增加一个碳的扩环产物，&一步法&合成，反应条件温和、环境友好；在1，3-二酮分子中成功地插入1个碳，合成出1，4-二酮和环丙醇，为现代有机合成提供了新的合成方法，具有良好的应用前景。

Picolinic acid∶Eu3+ complex synthesized in aqueous solution was determined by DTATG, ultraviolet absorption spectra and infrared spectra.

通过差热－热失重、红外光谱和紫外光谱等测试手段，对溶液中合成的吡啶－2－羧酸∶Eu3＋配合物进行了表征，并且通过原位合成方法在SiO2凝胶中合成了吡啶－2－羧酸∶Eu3＋配合物，与溶液中合成的吡啶－2－羧酸∶Eu3＋配合物进行了对比。

Two times hydrolyzation of Fe~(3+) and Cr~(3+) was firstly pointed out in the process of pillar preparation with hydrothermal method. In order to improve the thermal stability, Fe/Cr-Si-pillaring agent solution was synthesized by hydrolyzing Fe~(3+) and Cr~(3+) solution on the surface of silica sol, and Fe/Cr-Si-pillared montmorillonite (Fe/Cr-Si-PILM) was prepared with conventional method and hydrothermal method. Because the technical innovation of preparation is the best way to improve the PILM properties, two novel methods (Microwave method and Ultrasonication method) have been studied to synthesize Fe/Cr-PILM.In order to expand PILMs new application in the field of coal conversion, catalytic activity of Fe/Cr-Si-PILM catalyst in LongKou lignite and ShenHua coal residue liquefaction was discussed and characterized in the last part of this paper.

研究证明：蒙脱石的预处理是可行的，我们以预处理后的Ca-M为原料，研究并优化了PILM的水热法制备工艺，提出了金属离子的二次水解法；为了提高PILM的热稳定性，我们自制了硅溶胶，合成了Fe／Cr-Si三元复合柱化剂，并制备了Fe／Cr-Si-PILM；在PILM合成中，制备技术的革新是改进PILM性能的重要方法，为此我们探索了微波合成法和超声波合成法在制备Fe／Cr-PILM中的应用；最后，我们选择龙口褐煤和神华煤液化残渣为研究对象，探索了Fe／Cr-Si-PILM催化剂在煤炭液化中的应用，希望能开拓PILM应用的新领域。

The microwave assisted synthesis of aromatic esters has advantages such as less time, efficiency and safety while the traditional process has the disadvantages such as long rection time, low yield, serious pollution and difficult separation.

传统加热条件下合成芳香酯具有反应时间长、产率低、污染大及后处理困难等缺点。微波辅助合成芳香酯具有反应快速、高效及安全等优点。该文综述了微波辅助合成芳香酯的研究进展，并展望了微波技术在芳香酯合成中的发展前景。

The experimental results showed, after absorption of CO2, the material could be reprepared, whose performance of absorbing CO2 for the second time is affected by the temperature and air flux during repreparation.

实验结果表明，在吸收CO2后材料的再次合成过程中合成温度及空气流量影响材料吸收CO2的循环性能，在再次合成温度为750℃，空气流量为100mL／min的条件下，合成的材料具有良好的循环吸收CO2的性能。

Based on the investigation of the transesterification between dimethyl sebacate and 1,2,2,6,6-pentamethyl-4-piperinol, the synthetic technologies of Tinuvin292 and Tinuvin 765 were established. The two kinds of hindered amine light stabilizers were obtained in the yield of 93.3% and 92.4% respectively and qualified as the advanced level of the kindred overseas products.2. The synthetic technology of Tinuvin123 was studied and established. Using 2,2,6,6-tetramethyl-4-piperinol as the starting material, the product was synthesized successfully through oxidation, free-radical reaction and transesterification in overall yield of 57.6%.

本文研究建立了三个受阻胺类光稳定剂的合成工艺，探索了聚合型受阻胺类光稳定剂生产过程中不溶性副产物产生的原因，并设计、合成了一系列具有抑菌活性的新型受阻胺类光稳定剂。1、在研究癸二酸二甲酯与1，2，2，6，6-五甲基哌啶醇的酯交换反应的基础上，建立了受阻胺类光稳定剂Tinuvin292、Tinuvin765的合成工艺，分别以93.3%和92.4%的收率得到了光稳定剂Tinuvin292、Tinuvin765，所得产品质量达到了国外同类产品的水平。2、研究建立了受阻胺类光稳定剂Tinuvin123的合成工艺。

The synthetic technologies of three hindered amine light stabilizers were established, the reason for the insoluble side products formed in the production of polymerized hindered amine light stabilizers were studied, and a series of novel hindered amine light stabilizers with antibacterial properties were designed and synthesized in this present paper.1. Based on the investigation of the transesterification between dimethyl sebacate and 1,2,2,6,6-pentamethyl-4-piperinol, the synthetic technologies of Tinuvin292 and Tinuvin 765 were established. The two kinds of hindered amine light stabilizers were obtained in the yield of 93.3% and 92.4% respectively and qualified as the advanced level of the kindred overseas products.2. The synthetic technology of Tinuvin123 was studied and established.

本文研究建立了三个受阻胺类光稳定剂的合成工艺，探索了聚合型受阻胺类光稳定剂生产过程中不溶性副产物产生的原因，并设计、合成了一系列具有抑菌活性的新型受阻胺类光稳定剂。1、在研究癸二酸二甲酯与1，2，2，6，6-五甲基哌啶醇的酯交换反应的基础上，建立了受阻胺类光稳定剂Tinuvin292、Tinuvin765的合成工艺，分别以93.3%和92.4%的收率得到了光稳定剂Tinuvin292、Tinuvin765，所得产品质量达到了国外同类产品的水平。2、研究建立了受阻胺类光稳定剂Tinuvin123的合成工艺。

So, there is an especial significance in the case of energy sources shortage and huge energy consumption nowadays. Based on reaction mechanism of alkanolamines with acid gases in this work, selective absorption of H_2S from mixed-gas streams into the aqueous solution of blended amines of MDEA-TBEE has been studied using a static and a dynamic evaluation setup, respectively. TBEE, a severe sterically hindered amine, was added into MDEA to form the blended amines.

开发高效活化剂是酸性气体吸收领域重要的研究方向之一，研究工作采用一乙醇胺为原料，氢气为反应氛围，低压下有机气相通过管式催化反应器合成活化剂哌嗪，考察合成催化剂组成和操作参数对合成反应的影响；将合成产物应用于膜吸收装置和再生装置上考察其吸收和解吸CO_2的性能。

Diamines are performed. An new and effective atom economy, domino reaction is developed, and 5, 6dihydro-4H-thieno [2, 3-b] thiopyran are synthesized by 4-(4-methyl-1, 3-dithiol-2-ylidene)-1, 7-diaryl-1, 6-diene-3, 5-dione

然后以4-[（4-甲基-1，3-二噻烷-2-亚甲基）-1，7-二芳基]-1，6-二烯-3，5-二酮类化合物为合成子探索稠杂环合成方法，并发现一个高效的，具有原子经济性的多米诺效应合成方法，并成功的利用其合成了一系列噻喃并噻吩衍生物。

During the stationary phase of fermentation, cell productivity was slightly reduced. MgSO_4 and tryptone have the positive effect on the product synthesis and cell growth respectively. Based on these conclusions, MgSO_4 and tryptone were added to the feed medium to enhance the production of polysialic acid. Variable feed rate policies were applied to the fed-batch fermentation process and the final biomass and polysialic acid production were both increased by 40 percent.

通过摇瓶实验研究了大肠杆菌发酵过程中菌体生长和产物合成的影响因素，结果表明：产物合成与菌体生长是相耦联的过程，菌体生长受到菌体代谢产物的抑制作用，聚唾液酸的合成不受代谢产物的抑制作用；发酵进入稳定期后菌体的生长和生产能力有所降低；硫酸镁和胰蛋白胨分别对产物合成和菌体生长有一定的促进作用。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！