1 Haloalkanes and Haloarenes IIT-JEE Chemistry Siddhivinayaka Educational Academy Rajendra Nagar Chowk Link Road Bilaspur Ph-07752- 237799/238799 Website : www.bajpaigroup.com. e-mail - info@bajpaigroup.com CHAPTER 23 LEARNINg OBJECTIvES (i) Name haloalkanes and haloarenes according to the IUPAC system of nomenclature from their given structures. (ii) Describe the reactions involved in the preparation of haloalkanes and haloarenes and understand various reactions that they undergo.
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reaction of 1-Butanol to 1-Bromobutane occurs via a substitution reaction. This reaction type can proceed via either the SN1 or SN2 mechanisms. SN2 reactions have a second order rate and proceed in a single step (ie. The leaving group leaves and nucleophile attacks all in one step) and leads to inversion of configuration. In contrast‚ an SN1 reaction occurs at a first order rate and proceeds in two steps between which an intermediate carbocation is formed. In this reaction type there is both inversion
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which is the abbreviated term for phenylenevinylene‚ has light emitting properties since it has a large conjugated system. This organic molecule is possible to be formed from dichloro-para-xylene which then reacts with methanol and thiolane. The nucleophile would be the thiolane. A good leaving group in this case would be chlorine. After thiolane attacks‚ it results with dithiolane-xylene. The second step is reaction with sodium hydroxide. The hydroxide it used for deprotonation upon the substituted
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Name : Rebecce C. Deocampo Date : September 2‚ 2013 Course/Yr. : BS Chemistry III Sched : MF 7-10‚ Group#2 Experiment No. 1 Synthesis and Reactivity of Tert-Butyl Chloride I. Objectives : 1. To produce tert-butyl chloride from tert-butyl alcohol 2. To understand the SN1 and SN2 mechanism involved in the reaction 3. To determine the yield of percentage of t-butyl chloride II. Introduction An alkyl halide is a derivative of alkanes. Alkanes are hydrocarbons with a
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conditions. SN1 type reactions have the fastest rate and the highest yield with tertiary alcohols. The first step of the SN1 type dehydration reaction is the protonation of the alcohol to form an alkyloxonium ion and free the halide ion to become the nucleophile. The alkyloxonium ion then loses the oxonium group and becomes the carbocation intermediate. Following its formation‚ the carbocation is captured by the halide and the resultant alkyl halide is formed. The limiting reagent in this reaction is the
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Functional Group Analysis: Carbonyl Compounds‚ Oxidizable Carbonyl Compounds and Acidic Compounds Christian Paul L. Ramos Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City 1101 Philippines Date Performed: August 24‚ 2012; Date Submitted: September 19‚ 2012 Results and Discussion Aldehydes and ketones both contain the carbonyl group – a group in which a carbon atom has a double bond to oxygen. The carbonyl group in aldehydes is bonded to at least one
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2-methyl-2-butanol is most favorable for the reaction because when the leaving group leaves‚ it will leave a + charge on the carbon it was attached to‚ and a tertiary carbocation is the most stable. Another important requirement for a Sn1 reaction is a weak nucleophile attack group. Hydrochloric acid is a weak group because it has no negative charge‚ and works well for the reaction. Reaction for formation of 2-chloro-2-methylbutane The goal of this experiment was to form 2-chloro-2-methylbutane by addition
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This experiment involved a substitution reaction to perform synthesis of 2-phenylethanol to get (2-bromoethyl)benzene. Using NaBr in an acidic solvent of H2SO4 with H2O present‚ this synthesis was possible. Subsequent evaluations using TLC and then analyzed samples by Gas Chromatography were done to evaluate the results. Using SN2 reactions‚ primary alcohol is going to be converted to alkyl halide. Since the reaction can be reversed‚ the strong sulfuric acid was to make sure the product would indeed
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Inhibition was not observed. Therefore‚ we hypothesized that this occurred because the binding ability of the AAoF compound is reduced compared to the unmodified AAF compound. We believe this to be due to the abrogation of the nucleophile-P1 amide hydrogen bond in the enzyme-substrate complex. Subsequently‚ we performed a broad range inhibition assay by increasing AAoF while keeping AAF constant. An expected trend was seen where the higher the AAoF concentration‚ the less activity
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Chapter 17: Alcohols and Phenols C O O H H sp3 alcohol pKa~ 16-18 phenol (aromatic alcohol) pKa~ 10 Alcohols contain an OH group connected to a saturated carbon (sp3) Phenols contain an OH group connected to a carbon of a benzene ring O H C C H C C O chemistry dominated by the keto form 76 enol keto H O H R O H R O R R O O R’ water alcohol R S H ether R S R peroxide R S S R’ thiols thioether disulfides
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