PPT-Alkene

has at least one carboncarbon double bond C C Simplest alkene C 2 H 4 ethene Ch 11 Unsaturated Hydrocarbons Alkyne has at least one carboncarbon triple bond C . A logical approach. Surviving Reactions. Seems like “surviving” is always the word that best describes what has to happen in this class… but I think with a little practice you’ll find this isn’t all that difficult…. Dr. Clower. CHEM 2411. Spring 2014. McMurry. (8. th. ed.) sections . 3.5-3.7. , . 4.3-4.9. , 7.2, 7.6. Topics. Conformations . of Alkanes and Cycloalkanes. Unsaturation. Alkene . Stability. Molecular Model Kits. (mixture of E- and Z-)PdLnHXBB The relative stabilities of related alkenes can be determined by measuring their heats of combustion.. The thermodynamic stability of the butenes increases in the order: 1-butene < cis-2-butene < trans-2-butene.. Addition to Alkenes. Addition of H-X to the Carbon-Carbon Double Bond:. Markovnikov’s. Rule. In its original form, . Markovnikov’s. rule states that, during the addition of HX to a C=C, the hydrogen atom goes to the side of the . Physical Properties of Alkanes. Non polar compounds. Insoluble in water. Less dense than water and so will float on top of the water. Dissolve in organic solvents . . (. eg. dry cleaning fluid) and in each other (. London. Dr. . Ed . Marshall, M220, RCS . 1. e.marshall@imperial.ac.uk. Additional materials available on:. www.ch.ic.ac.uk/marshall/3I3.html. Lecture notes also available on Blackboard. 3I3 Slide . 1. Addition . Reactions. Addition is the opposite of elimination. A pi bond is converted to a sigma bond. Addition . Reactions. A pi bond will often act as a Lewis base (as a nucleophile or as a . Brønsted. This resource is strictly for the use of member schools for as long as they remain members of The PiXL Club. It may not be copied, sold nor transferred to a third party or used by the school after membership ceases. Until such time it may be freely used within the member school.. 12-1. Because the C-C .  bond is relatively weak, alkene chemistry is dominated by its reactions.. The addition of a reagent, A-B, to give a saturated compound is the most common transformation of an alkene.. and alkyne . Reactions, continued. Dr. Clower. CHEM 2411. Spring 2014. McMurry. (8. th. ed.) sections 7.7-7.8, 7.10-7.11, 10.3-10.4, 8.2-8.8, 8.10, 8.12, 9.3-9.8, 7.1, 8.1, 9.2, 9.9 . Reactions of Alkynes. 1. Organic Chemistry year 1 2011-2012. Professor Martin Wills. Email: . m.wills@warwick.ac.uk. Office: C504. CONTENT OF LECTURES. . . Substitution reactions at saturated carbon atoms: ‘S. N. 2 and S. . as a tool for structure determination. Experimental:. Dissolve the sample in DCM (1 mL). Add . dropwise. a 1% . bromine solution. of DCM. Positive test, if red color disappears . Conclusion:. The sample contains a multiple bond, which undergoes . Types of Reactions. Types of Reactions. There are . 9. . main types of reactions we will examine:. Combustion. Substitution. Addition. Halogenation. , . Hydrogenation, . Hydrohalogenation. , Hydration.