点击切换搜索课件文库搜索结果(453)
文档格式:PDF 文档大小:659.41KB 文档页数:38
arboxylic acids, compounds of the type RCOH, constitute one of the most fre- quently encountered classes of organic compounds Countless natural products are carboxylic acids or are derived from them. Some carboxylic acids, such as acetic acid, have been known for centuries. Others, such as the prostaglandins, which are pow erful regulators of numerous biological processes remained unknown until relatively
文档格式:PDF 文档大小:407.57KB 文档页数:22
he value of alkyl halides as starting materials for the preparation of variety of organic functional groups has been stressed many times. In our earlier discussions, we noted that aryl halides are normally much less reactive than alkyl halides in reactions that involve carbon-halogen bond cleavage. In the present chapter you will see that aryl halides can exhibit their own patterns of chemical reactivity, and that these reac
文档格式:PDF 文档大小:685.07KB 文档页数:43
he major classes of organic compounds common to living systems are lipids, pro- teins, nucleic acids, and carbohydrates. Carbohydrates are very familiar to us- we call many of them\sugars.\ They make up a substantial portion of the food we eat and provide most of the energy that keeps the human engine running. Carbohy- drates are structural components of the walls of plant cells and the wood of trees. Genetic
文档格式:PDF 文档大小:529.46KB 文档页数:14
CONTENTS Preface xxv INTRODUCTION he Origins of Organic Chemistry 1 Berzelius, Wohler. and vitalism 1 The Structural Theory 3 Electronic Theories of Structure and Reactivity 3
文档格式:PPT 文档大小:862KB 文档页数:72
Mechanism Blood velocity1 Blood vascosity Valve: narrowed or incompetent; organic or relative Abnormal connection Vibration of loose structure Diameter of vessel ^or
文档格式:PDF 文档大小:56.68KB 文档页数:3
This handout describes standard extraction and washing protocols that can be applied to virtually any crude reaction mixture. Aqueous washings are done to remove water soluble impurities from organic products since normally the compound that you desire will be dissolved in Reference
文档格式:PDF 文档大小:238.78KB 文档页数:3
The Goal of this course: By studying this course, students can understanding kinetics, preparation and purification, and immobilization of enzymes. Also, knowing of applications and reactors of enzyme is another important task of students. Finally, students should master something in enzyme catalysis in organic media and some common, useful industrial enzymes
文档格式:PDF 文档大小:277.95KB 文档页数:5
在有机化学课程学习基础上,通过本课程的学习,达到在有机合成方面能初步掌握如何 正确设计合成路线并学习几种较常规的合成方法进一步学习在近代结构分析中占有极其重 要地位的波谱理论,特别是核磁共振谱、红外光谱和紫外光谱为进一步扩大学生的知识面, 在上述基础上,对另一些近代有机理论作初步介绍,以满足学生今后在工作上对这方面知识 的需要
文档格式:PPT 文档大小:3.85MB 文档页数:60
一、概念:土壤有机质(soil organic matter) 土壤有机质是土壤中的各种动植物残体,在土壤生物的作用下形成的一类特殊的高分子化合物
文档格式:PPT 文档大小:3.08MB 文档页数:73
Definition Dysfunctional uterine bleeding (DUB): Abnormal uterine bleeding with no demonstrable organic causes. A diagnosis of exclusion
首页上页3839404142434445下页末页
热门关键字
搜索一下,找到相关课件或文库资源 453 个  
©2008-现在 cucdc.com 高等教育资讯网 版权所有