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

The most characteristic reaction of aldehydes and ketones is nucleophilic addition to the carbon-oxygen double bond

9.3 醛酮的反应 Reactions of Aldehydes and Ketones

Alkenes are hydrocarbons whose molecules contain the carbon-carbon double bond. Alkynes are hydrocarbons whose molecules contain the carbon-carbon triple bond

Acetylenic hydrogens can be deprotonated with relatively strong bases (sodium amide is typical)

One complication associated with alkene hydration is the occurrence of arrangements

9.1 醛 酮的结构 命名和物理性质 Structure, Nomenclature and Physical Properties 9.2 醛酮的制备 Preparations

厦门大学化学化工学院：《有机化学》课程教学资源（课件讲稿，双语版）第八章 醇和醚 Alcohols and Ethers 8.1 醇 Alcohols

厦门大学化学化工学院：《有机化学》课程教学资源（课件讲稿，双语版）第六章 炔烃和共轭二烯 Alkynes and Conjugated Dienes 6.2 炔烃的化学性质 Chemical Properties of Alkynes 6.3 炔烃的制备 Preparation of Alkynes

厦门大学化学化工学院：《有机化学》课程教学资源（课件讲稿，双语版）第五章 烯烃 Alkenes 5.4 烯烃的反应 Reactions of Alkenes（1/2）