Alkene Reactions: Halogenations and Hydrohalogenation in Organic Chemistry, Lecture notes of Chemistry

Download Alkene Reactions: Halogenations and Hydrohalogenation in Organic Chemistry and more Lecture notes Chemistry in PDF only on Docsity! ORGANIC CHEMISTRY ALKENE REACTIONS: HALOGENATIONS AND HYDRATION CHEMISTRY 165 // SPRING 2020 D R . M IO Y T . H U Y N H | 2 0 2 0 Alkene halogenation (X2) This reaction requires an alkene and a halogen X2 (Br2, I2, F2). Reaction: add two halogen atoms (X) to the carbon atoms on a double bond. trans-but-2-ene (C4H8) 2,3-dibromobutane (C4H8Br2) Alkene hydrohalogenation (HX) This reaction requires an alkene and an HX (X = Br, Cl, I) molecule. Reaction: add a hydrogen (H) atom and a halogen (X) atom across a double bond Product: the halogen (X) atom adds to the more substituted carbon atom, and the hydrogen (H) atoms adds to the less substituted carbon atom. This is called Markovnikov’s Rule. 2-methylprop-2-ene (C5H10) 2-bromo-2-methylbutane (C5H11Br) P R A C T I C E P R O B L E M 2 — answer — Complete each reaction by drawing the correct missing reactant or product. P R A C T I C E P R O B L E M 2 — answer — Complete each reaction by drawing the correct missing reactant or product. P R A C T I C E P R O B L E M 3 — answer — Complete each reaction by drawing the correct missing reactant or product. P R A C T I C E P R O B L E M 4 — answer — Which of the following reaction(s) would yield products with a new chiral center? P R A C T I C E P R O B L E M 4 — answer — Which of the following reaction(s) would yield products with a new chiral center?