PPT-Reactions of Alkenes:

Addition Reactions Addition is the opposite of elimination Here are some of the many addition reactions that will be considered Addition Reactions Addition of Halogens to Alkenes X 2. Alkanes, alkenes, alkynes and aromatics. Types of Hydrocarbons. Hydrocarbons contain C and H. There are 4 families, alk. anes. only have C-C single bonds, alk. enes. have at least one C=C and alk. ynes. 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.. Preparation of alkenes. Preparation of alkenes continued. Dehydration of alcohols. The H and OH are removed from adjacent carbons.. E.g. ethanol may be heated with . sulphuric. acid to create . ethene. Hydrocarbons . Essential idea. Structure, bonding and chemical reactions involving functional group inter-conversions are key strands in organic chemistry.. Learning outcomes . Understand:. Alkanes. have low reactivity and undergo free-radical substitution reactions.. C1.5. What do I need to know?. Recall. how hydrocarbons can be cracked to make smaller more useful molecules.. Describe. some of the properties of alkenes. Explain. how alkenes can be used to synthesise polymers for a wide range of different applications.. of Alkenes: Addition Reactions. Disparlure: sex attractant of the female gypsy moth.. (A type of . pheromone.. ). 2. I. Hydrogenation of Alkenes. Addition. Reactions. oleic acid. (unsaturated). stearic acid. 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. Alkenes. The commercial . process. of . hydrogenation is . used. to . convert the double . bonds. in . vegetable oils to . saturated. fats . such as those in margarine. . Learning . Goal . . Draw the condensed or line-angle structural formulas and give the names for the organic products of addition reactions of alkenes. Draw a condensed structural formula for a section of a polymer.. 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. Newehy. Chemistry Department, College of Science, King Saud University. http://fac.ksu.edu.sa/melnewehy. Unsaturated Hydrocarbons. Alkynes. - . Alkynes. are . ydrocarbons. . that contain a . carbon–carbon . Synthesis reactions. Decomposition reactions. Single replacement reactions. Double replacement reactions. (Precipitate reaction). Chemical Reactions can be written as:. Word equation. Chemical equation. Unsaturated Hydrocarbons. Unsaturated hydrocarbon. :. . contains one or more carbon-carbon double or triple bonds. alkene. :. . contains a carbon-carbon double bond and has the general formula C. n. Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display.. Acetaldehyde – of commercial importance. . - oxidation to acetic acid. . - dehydration to acetic anhydride. Alkenes. 108 . Chem. Learning Objectives. Chapter . two discusses the following topics and the student by the end of this chapter will:. . Know the structure, hybridization and bonding of alkenes . .