PPT-Aryl halides

Dr Talat R Al Ramadhany Aryl halides Ar x Aryl halides are organic compounds containing halogen atom attached to an aromatic ring They have the general formula ArX where Ar. Chapter 19. Carboxyl Derivatives. In this chapter, we study three classes of compounds derived from carboxylic acids; anhydrides, esters, and amides.. Each is related to a carboxyl group by loss of H. Structure. Alkyl halides (R−X) have an alkyl group joined to a halogen atom by a single . bond.. As . you go down the periodic . table,. the . size of the halogen atom . increases. the . C−X bond is . Compounds. Chem. 108. Chapter 6. 1. An organic compound containing at least one . . carbon-halogen bond (C-X). X (F, . Cl. , Br, I) replaces H. Can contain many C-X bonds. Organic Halogen Compounds. "for palladium-catalyzed cross couplings in organic synthesis". .. Photo: University of Delaware, USA. . Photo: Purdue University, USA. . Photo: Hokkaido University, Japan. . Richard F. Heck. 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:. King Saud University . Chemistry Department. 145 Chem. 1. 145 Chem. 2. King Saud University . Chemistry Department. CH. 3. -X and R-CH. 2. -X : Primary alkyl halide.. (R). 2. -CH-X : Secondary alkyl halide.. 145 Chem. 1. 145 Chem. 2. Alkyl Halides. 145 . Chem. 3. CH. 3. -X and R-CH. 2. -X : Primary alkyl halide.. (R). 2. -CH-X : Secondary alkyl halide.. (R). 3. -C-X : Tertiary alkyl halide.. . 1. Chapter 21. Phenols and Aryl Halides. Nucleophilic Aromatic Substitution. Ch. . 21. . - . 2. About The Authors. . These PowerPoint Lecture Slides were created and prepared by Professor William Tam and his wife, Dr. Phillis Chang. . Attack. Electrophilic Aromatic Substitution. Electrophile substitutes for a hydrogen on the benzene ring.. Mechanism. =>. Bromination of Benzene. Requires a stronger electrophile than Br. 2. .. Use a strong Lewis acid catalyst, FeBr. Introduction. Anhydrous metal halides are commonly used starting materials for many organometallic compounds . (i.e., in reactions with Grignard reagents, the formation . of . metallocene, chromium(III) . a new . pathway that cleaves . the . C-O bonds . in aromatic ethers using . Pd catalysts, . breaking these bonds . under mild conditions. . Significance and Impact. . New pathway for converting lignocellulose into fuels. Assist . Prof . Karima F. Ali. AL-Mustansiriyah university. College of pharmacy. Pharmaceutical chemistry. Central Nervous system. . Broad . range of agents that . stimulate. the . central nervous . Salvant. University of Utah. Lipitor. Aryl Fluorination. Wiki . Page: http://en.wikipedia.org/wiki/Balz%E2%80%93Schiemann_reaction. Overview: . Aryl . fluorines. are present in two of the top 10 grossing drugs (Lipitor and . HALOALKANES. DHEERAJ GUPTA. ALKYL HALIDES OR HALOALKANES. An organic compound containing at least one carbon-halogen bond (C-X). X (F, . Cl. , Br, I) replaces H. Alkyl halides are organic molecules containing a halogen atom bonded to an .