PDF-Aromatic Hydrocarbons Chapter

3 brPage 2br Organic Compounds Hydrocarbons Hydrocarbon Derivatives Aliphatic Aromatic Saturated Unsaturated Alkanes Alkenes Alkynes More about these in the next few days HINT alkyl halides and alcohols are examples THIS is our topic. PAHs are found naturally in the environment but they can also be manmade In their purest form PAHs are solid and range in appearance from colorless to white or pale yellow green PAHs are created when products like coal oil gas and garbage are burned Dr. . Sheppard. CHEM . 2412. Summer 2015. Klein (2. nd. ed. .) . sections. : 18.1, 18.2, 18.8, 18.3, 18.4, 18.5. Aromatic Compounds. Originally distinguished because of smell. Then noticed trends in reactivity. Most common reactions for aromatics involve replacement of ring . hydrogens. by other atoms or groups . (substitution reactions). Mechanism of Electrophilic Aromatic Substitution Reactions. Electrophile. Lecture 12. Organic chemistry. What distinguishes organic chemistry from other areas of chemistry?. Origins – compounds from plants and animals. Organic compounds were though to have a “v. ital force” and as such . Dr. . Shatha. I . Alaqeel. 108 . Chem. Learning Objectives. By the end of chapter four the students will:. Understand the resonance description of structure of benzene. Understand the hybridization in benzene. 22.1 Hydrocarbons. Organic Chemistry. includes almost all carbon compounds. Not limited to compounds found in living cells. Hydrocarbon: organic compound made of only hydrogen and carbon atoms. hydrocarbons. 240 . Chem. 1. The expressing . aromatic compounds . came to mean . benzene. . and derivatives of benzene. .. . Structure of Benzene: Resonance Description. C. 6. H. 6. It contains a six-membered ring and three additional degrees of unsaturation.. MICHAEL FARADAY (1791-1867). first person to isolate and identify benzene. early benzene uses:. - . decaffeinate . coffee. - antiknock additive . in gasoline. - solvent in chem rxns. now we know benzene is a carcinogen!. Faizan. Ali. The term . hydrocarbons has been used to represent . compounds derived from petroleum distillation.. 1. . Aliphatic Hydrocarbons (. Paraffins. ). These comprise compounds with saturated molecules (containing . Bold entries indicate new or changed listings in the Fifteenth Report on Carcinogens. Known To Be Human Carcinogens Aatoxins Alcoholic Beverage Consumption 4-Aminobiphenyl Aristolochic Acids Ars Assistant lect. Nora . Zawar. Assistant lect. . Zeina. Dawood. Assistant . lect. . Zahraa. . Amer. . Simple Solution. Solutions. : are liquid pharmaceutical preparations. Which contain one or more soluble chemical substance dissolved in one or more suitable solvent and produce single-phase system. Arenium Ion Mechanism . Some Aromatic Electrophilic Substitution Reactions Viz. Nitration, Sulphonation, Halogenation, Friedel- Crafts Reaction. Orientation & Reactivity in Mono Substituted Benzene. Dr. Geeta Singh. Assistant Professor. Department of Chemistry. D.D.U. Gorakhpur University, Gorakhpur. Introduction. Key . terms.. General reaction for aromatic electrophilic substitution.. Common reactions of AES.. D. r. . Zamir G Khan . Assistant Professor . H R Patel Institute of Pharmaceutical Education and Research Shirpur, Dist. Dhule, (M.S) 425405. Copyright @ Mr. Z G Khan. 2. If benzene is 1,3,5-cyclohexatriene as .