Organic Chemistry,6th Edition L.G.Wade,Jr. Chapter 08 09 AlRenes Key Notes Electrophile;Electrophilic addition; Carbocation stability;Conjugated dienes By Junru Wang Email:wangjr07@163.com 西北农林科技大学理学院
西北农林科技大学理学院 By Junru Wang Email: wangjr07@163.com Chapter 08 & 09 Alkenes Organic Chemistry, 6th Edition L. G. Wade, Jr. Key Notes Electrophile; Electrophilic addition; Carbocation stability; Conjugated dienes
Content Introduction Properties Preparation Reactions of alkenes Electrophilic addition -Carbocation stabilization -Free-Radical Addition of HBr Reduction and oxidation -Allylic halogenation Conjugated dienes
Content ❖Introduction & Properties ❖Preparation ❖Reactions of alkenes ◼Electrophilic addition ◼Carbocation stabilization ◼Free-Radical Addition of HBr ◼Reduction and oxidation ◼Allylic halogenation ❖Conjugated dienes
Key Notes Electrophile Electrophilic addition Carbocation stability Conjugated dienes
Key Notes ❖Electrophile ❖Electrophilic addition ❖Carbocation stability ❖Conjugated dienes
Sec 1 Introduction Properties Hydrocarbon with carbon-carbon double bonds Sometimes called olefins,oil-forming gas” Pi bond is the functional group. More reactive than sigma bond. Bond dissociation energies: C=C BDE 611 kJ/mol C-C BDE -347 kJ/mol Pi bond 264k灯/mol
Sec 1 Introduction & Properties ❖Hydrocarbon with carbon-carbon double bonds ❖Sometimes called olefins, “oil-forming gas” ❖Pi bond is the functional group. ❖More reactive than sigma bond. ❖Bond dissociation energies: ◼C=C BDE 611 kJ/mol ◼C-C BDE -347 kJ/mol ◼Pi bond 264 kJ/mol
Alkenes structure Molecule is planar around the double bond. The carbon atoms of the C=C bond are sp hybridized and Double bond is made up of one o bond and one元bond. a-bond sp2center 120 120的 RR.JC-CLP 120 Planar bond Fig.1.Structure of an alkene functional group
Alkenes structure ❑Molecule is planar around the double bond. ❑ The carbon atoms of the C=C bond are sp hybridized and ❑Double bond is made up of one bond and one bond