TTh_11 - Organic Lecture Series CH 310/318 M Textbook...

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Organic Lecture Series 1 CH 310/318 M LECTURE 11 Textbook Assignment: Chapter 6 Today’s Topics: Alkene Alkene -reactions; Introduction reactions; Introduction NO HW this week Organic Lecture Series 2 Reactions Reactions of Alkenes of Alkenes Chapter 6 Chapter 6
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Organic Lecture Series 3 CC B r 2 (HX) HCl H 2 O (X 2 ) CC B r 2 (X 2 ) H 2 O (X) CC H OH CC Br Br( X) CC HO Br( X) C C H Cl(X) Descriptive Name(s ) Reaction + + + Bromination (halogenation) Hydrochlorination (hydrohalogenation) Hydration + Halohydrin formation (Bromohydrin formation) CC CC Characteristic Reactions Characteristic Reactions Organic Lecture Series 4 C C CC C C BH 3 OsO 4 H 2 CC Hg(OAc) 2 H 2 O CC BH 2 H C C HO OH CC H H CC HO HgOAc + + + Hydroboration Diol formation (oxidation) Hydrogenation (reduction) + Oxymercuration
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Organic Lecture Series 5 • A reaction mechanism describes how a reaction occurs and explains the following. ¾ Which bonds are broken and which new ones are formed. ¾ The order and relative rates of the various bond-breaking and bond-forming steps. ¾ If in solution, the role of the solvent. ¾ If there is a catalyst, the role of a catalyst. ¾ The position of all atoms and energy of the entire system during the reaction. Reactions Mechanisms Reactions Mechanisms Organic Lecture Series 6 • Gibbs free energy change, Gibbs free energy change, Δ G 0 : – A thermodynamic function relating enthalpy, entropy, and temperature. – Exergonic Exergonic reaction: reaction: A reaction in which the Gibbs free energy of the products is lower than that of the reactants; the position of equilibrium for an exergonic reaction favors products . – Endergonic
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TTh_11 - Organic Lecture Series CH 310/318 M Textbook...

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