PPT-Electrophilic

Addition to Alkenes Addition of HX to the CarbonCarbon Double Bond Markovnikovs Rule In its original form Markovnikovs rule states that during the addition of HX to a CC the hydrogen atom goes to the side of the . Benzene is aromatic: a cyclic conjugated compound with 6 . . electrons. Reactions of benzene lead to the retention of the aromatic core. Types of Reactions. Electrophilic. substitution. Diazonium. Synthetic design involves two distinct steps: . (1) retrosynthetic analysis and . (2) subsequent translation of the analysis into a "forward direction" synthesis. . In the analysis, the chemist recognizes the functional groups in a molecule and disconnects them proximally by methods corresponding to known and reliable reconnection reactions.. Heterocyclic. Chemistry. Heterocyclic. Chemistry. Five-. membered. . Heterocycles. Pyrrole. , Furan and . Thiophene. Heterocyclic Chemistry. Five Membered Heterocycles-Introduction. The main reason for the study of pyrrole came from the work on the structure of haem; the blood respiratory pigment, and the chlorophyll; the green photosynthetic pigment of plants.. arene. : includes one or more ring of six carbon atoms with delocalised bonding.. All of the organic substances we have looked at so far have been aliphatic. Benzene belongs to the aromatic class. Benzene’s Structure. 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.. Newehy. Chemistry Department, College of Science, King Saud University. http://fac.ksu.edu.sa/melnewehy. Aromatic . Compounds. The Structure of Benzene Ring. - . Benzene. is . the . parent hydrocarbon of . . 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 . Reactions of Arenes. Reactions involving the ring. A. Reduction. a. Catalytic hydrogenation (Chapter 11.4). b. Birch reduction (Chapter 11.11). B. . Electrophilic. aromatic substitution (Chapter 12). BY. Ronald Mensah. Introduction . Fluorination methods. Fluorination in Medical chemistry. Conclusion . Writing Component. References . Questions. Outline . Introduction . What is fluorine?. Location on the periodic table . 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.. 1. Nomenclature . of Polycyclic Aromatic Compounds. Polycyclic . aromatic compounds have two or more benzene rings fused together. 2. Naphthalene, anthracene and phenanthrene are obtained from . coal tar. 282 Benzene and Its Derivatives What Is the Structure of Benzene? What Is Aromaticity?How Are Benzene Compounds Named, and What Are Their Physical Properties?What Is the Benzylic Position, and How D 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.. Teerawat. . Songsichan. 1. st. June 2017. Laboratory of Synthesis and Natural Products (LSPN). Content. 1. Introduction. 2. Electrophilic Fluorination. 2.1 Metal-Catalyzed Fluorination Involving Enolates.