化学合成

They are also considered as synthetic intermediates for the construction of numerous cyclic and acyclic compounds.

在合成化学中，有机化学家也常常通过它们作为合成复杂天然或非天然产物的关键中间体。

In organic chemistry field, acyl chloride s play an important role.

酰氯是重要的有机合成中间体，在合成化学领域起着非常重要的作用。

Asymmetric synthesis is one of the most important parts in organic synthesis.

不对称合成是有机合成化学领域的重要研究内容之一。

The results show different factors in this process such as reactant ratio, atmosphere pressure etc.

结果表明，反应物投料比例，合成气氛压力等因素对合成产物化学计量配比有显著的影响。

Since C6 and higher alcohols are not obtainable by a direct biochemical route, it is proposed to synthesize these using known chemical reactions, wherein the raw material for synthesis is biogas and lower C2-C5 alcohols obtained by the inventive method wherein the amino acids leucine, isoleucine, and valine, or a mixture thereof, optionally obtained from yeast autolysate, is used as a biocatalyst at the stage of fermentation.

因为C6和更高级醇类不能通过直接生物化学途径制得，所以提出用已知的化学反应合成这些化合物，其中合成的原料为本发明方法制得的生物气和C2-C5醇类，其中任选从酵母自溶作用得到的亮氨酸、异亮氨酸和缬氨酸或其混合物的氨基酸在发酵阶段用作生物催化剂。

IV. The total synthesis of dehydrodiconiferyl alcohol and its dihydro-derivative The benzofuran skeleton was constructed by chemically oxidative couplingstarting from vanillin, then selective reduction with LiAI〓/〓 andhydrogenation in the presence of Pd-C followed reduction with LiAl〓respectively, to give dehydrodiconideryl alcohol and its dihydro-derivative, usefulin treating and preventing digestive system disorders, esp.

四、Dehydrodiconiferyl alcohol及其二氢衍生物的全合成以香草醛为起始原料，用化学氧化法一步建立氢化苯骈呋喃骨架，LiAlH〓／〓选择性还原以及催化加氢还原接着〓还原，分别合成了对预防和治疗消化系统疾病尤其是胃溃疡有显著效果的Dehydrodiconiferylalcohol及其二氢衍生物。

The one carbon unit transfer reaction involving in the tetrahydrofolate coenzymes has caused great interest which is very important in the living system and has played an important role in the designing and syntheses compounds (especially the anti-cancer and LCD materials). In our study it was found that benzimidazolium salt has the ability to transfer one or two one-carbon unit and is a kind of new tetrahydrofolate coenzymes model. This research provides new method for biomimetic synthesis.

在非酶催化条件下，不仅实现了与生物体内相类似的一碳单元转移反应，而且可以转移具有不同官能团的取代&一碳单元&，使这种一碳单元转移反应传递的功能化一碳单元更加多样化，这方面强劲的研究工作进展，将为异常活跃的合成化学提供更多常规合成方法难以实现或实现不理想的仿生合成新方法。

The advantages of catalytic synthesis of oxalate ester in gaseous phase by carbon monoxide are summarized. The five important characterization of our patent technology invented for the use of industrial raw material and the potential good economic value of the process are presented. It indicates that study and development of catalytic synthesis of oxalate ester .oxalic acid as well as glycols by natural gas in gaseous phase have a great advantage for full utilization of natural gas....

概述了&CO气相催化合成草酸酯&技术的先进性，介绍用工业性原料为主要内容的专利技术：&气相催化合成草酸酯连续工艺&的五个主要特点及其潜在的经济效益，并指出，用天然气经合成气进行气相催化合成草酸酯和草酸、乙二醇的研究与开发，可使天然气得到充分的利用，具有很好的经济效益，是天然气化工综合利用的一条有效途经，也是当代C1化学的重要发展方向。

The courses offered in this program include political theory, foreign languages, numerical analysis, application of computer techniques, chemical structures of plant fibers, pulp preparation chemistry, pulp and paper making technology, computer simulation of equipment and processes, sugar science and engineering, sugar making technology and equipment, biochemical technology, microorganism enzymes, enzyme engineering, fermentation technology, biochemical engineering and control theory, biochemical separation technology, biological catalyst technology, leather processing theory and technology, leather cleaning technology and theory, leather testing techniques, synthesis and application of chemical leather products, thermodynamic processes in light industry equipment, light industry enterprise management, product quality control, etc.

研修的主要课程有：政治理论课、外语课、数值分析、计算机应用技术、植物纤维化学结构及其研究方法、制浆化学、制浆造纸工艺、设备及过程计算机模拟、糖品科学与工程、现代制糖工艺与装备、现代生化技术、微生物酶学、酶工程、发酵工程技术、生化工程及控制概论、生化分离工程、生物催化技术、皮革现代加工理论与技术、皮革清洁工艺及理论、现代皮革检测技术、皮革化学制品合成及应用、轻工真空设备的热工过程、轻工企业管理及产品质量控制等。

The courses offered in this program include political theory, foreign languages, numerical analysis, application of computer techniques, chemical structures of plant fibers, pulp preparation chemistry, pulp and paper making technology, computer simulation of equipment and processes, sugar science and engineering, sugar making technology and equipment, biochemical technology, microorganism enzymes, enzyme engineering, fermentation technology, biochemical engineering and control theory, biochemical separation technology, biological catalyst technology, leather processing theory and technology, leather cleaning technology and theory, leather testing techniques, synthesis and application of chemical leather products, thermodynamic processes in lig

研修的主要课程有：政治理论课、外语课、数值分析、计算机应用技术、植物纤维化学结构及其研究方法、制浆化学、制浆造纸工艺、设备及过程计算机模拟、糖品科学与工程、现代制糖工艺与装备、现代生化技术、微生物酶学、酶工程、发酵工程技术、生化工程及控制概论、生化分离工程、生物催化技术、皮革现代加工理论与技术、皮革清洁工艺及理论、现代皮革检测技术、皮革化学制品合成及应用、轻工真空设备的热工过程、轻工企业管理及产品质量控制等。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。