PPT-Alkynes

Alkynes Alkynes are molecules that incorporate a C C triple bond Alkynes Given the presence of two pi bonds and their associated electron density alkynes are similar to alkenes in their ability to act as a nucleophile. Objectives. Rules. Unsaturated. Alkenes. I certainly learnt to call ethylene . ethene. and propylene . propene. (see slide 1). Molecular formula. Alkanes. C. n. H. 2n+2. Alkenes. C. n. H. 2n. Alkynes?. 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. Alkynes. Organic Chemistry. Second Edition. David Klein. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved.. Klein, Organic Chemistry 2e . 10.1 Alkynes. Alkynes are molecules that incorporate a C. And Their Halogen Derivatives. IUG, Fall 2012. Dr . Tarek. . Zaida. Alkenes and Alkynes. 1. . Alkenes. are compounds containing carbon –carbon double bonds. The simplest . alkene. , . ethene. , is a plant hormone.. Orbitals. Natural gas?. Fig. 11.1. Aliphatic Hydrocarbon Structure Comparison. Bonding and Geometry. of Two-Carbon Molecules . 11.1 Structure and Physical. . Properties. Alkenes and Alkynes I:. Properties and Synthesis.. Elimination Reactions. of Alkyl Halides. Copyright © 2014 by John Wiley & Sons, Inc. All rights reserved.. About The Authors. . These PowerPoint Lecture Slides were created and prepared by Professor William Tam and his wife, Dr. Phillis Chang. . In a reaction catalyzed by mercuric ion, water can be added to alkynes to give enols, which then tautomerize to give ketones.. Hydration follows Markovnikov’s rule—terminal alkynes give methyl ketones:. 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. Division of Material. Alkenes and Alkynes are very versatile molecules in Organic Chemistry. As a result, there is a lot of information we need for them. . To make it manageable, the information is divided into two chapters.. 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. Third . Edition. David Klein. Copyright © 2017 John Wiley & Sons, Inc. All rights reserved.. Klein, Organic Chemistry 3e . 10.1 Alkynes. Alkynes are molecules that possess a C. C triple bond. Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display.. Acetaldehyde – of commercial importance. . - oxidation to acetic acid. . - dehydration to acetic anhydride. INDRANIL CHAKRABORTY. 04-06-2020. IR-3. 1. 04-06-2020. IR-3. 2. 04-06-2020. IR-3. 3. 04-06-2020. IR-3. 4. Whenever two methyl groups are present in geminal position, the signal at 1375 cm . -1. is further split into two signals of almost equal intensities. This is due to in phase and out of phase C-H bending. . initiated. by an hydride shift. Yann . Odabachian. 25.09.2012. Concept of redox . processes. First type of application. The . tert. -amino. . effect. Thermic. transformation :. Lewis . acid. .