The aldols formed in aldol additions can be easily dehydrated to yield conjugated enals (enones)

If a chiral atom attached to the carbonyl group, the stereoselectivity of nucleophilic addition follows the Cram’s rule

1.1 Typical environmental problems 1.2 Shortage of resources 1.3 Health concerns 1.4 Towards Sustainable Development

12.1分类、结构和命名 12.1.1分类 12.1.2结构和命名 12.2羧酸的制法 12.3羧酸的物理性质 12.4羧酸的化学性质

3.3 外消旋体的拆分 3.4 外消旋化与差向异构化 3.5 有机反应中的立体化学 Stereochemistry of Reactions

1858 ~ 1861, Kekulé, Couper, and Butlerov, laid the basis for one of the most fundamental theories in chemistry: the structural theory. Valence（化合价）: C — tetravalent; O — divalent; H — monovalent

一化工过程及单元操作 化工过程一化学与物理方法处理过程的总和 单元操作一无化学反应的基本物理过程。 二.课程的内容、性质及任务 内容:三传一反 三传 1.流体流动过程(动量传递) 2.传热过程(热量传递) 3.传质过程(质量传递)

More environment-friendly methods Natural insect attractants — instead pesticide Less reactive compounds organic refrigerants and aerosol propellant — instead Freon (that destroy the Earth’s ozone layer) Cars with more efficient combustion engines — reduce the massive amount of automobile

宁夏大学化学化工学院：《化工原理》课程教学电子教案（化工流体流动与传热）传热过程基础

宁夏大学化学化工学院：《化工原理》课程教学电子教案（化工流体流动与传热）固体物料的干燥