Experiment 14: Preparation of 1-Bromobutane Goal: To prepare 1-Bromobutane by the SN2 reaction from 1-Butanol with Sodium Bromide and Sulfuric Acid. Mechanism: Procedure: 1. Place 27g of NaBr‚ 20mL of n-butyl alcohol‚ and 30mL of water into a 250mL round bottom flask. 2. Put the mixture in an ice-water batch and cool briefly‚ then slowly add 23 mL of conc H2SO4 while stirring with a magnetic stirrer. 3. Place a water-cooled condenser and heat the flask until the mixture boils while
Premium Distillation
Part A: Dehydration of 1-butanol & 2-Butanol/Part B: Dehydrobromination of 1-Bromobutane & 2-Bromobutane Abstract The objective of this experiment is to successfully perform a dehydration of 1-butanol and 2-butanol‚ also dehydrobromination of 1-bromobutane and 2-bromobutane to form the alkene products 1-butene‚ trans-2-butene‚ and cis-2-butene. The dehydration reactions react under and acid-catalysis which follows an E1 mechanism. It was found that dehydration of 1-butanol yielded 3.84%
Premium Acid Organic reaction Alkene
Experiment 13: Synthesis of 1- Bromobutane An SN2 Reaction Theory: One of the methods of preparing alkyl halides is via the nucleophilic substitution reactions of alcohols. Alcohols are inexpensive materials and easy to maintain. However‚ they are a poor leaving group the OH group is a problem in nucleophilic substitution‚ this problem is fixed by converting the alcohol into H2O. Objective: The objective of this lab is to observe the synthesis of 1-bromobutane in an SN2 reaction‚ to see how
Premium Distillation Alcohol Ethanol
Materials & Methods: Materials used: 1-bromobutane 1-chlorobutane bromocyclopentane Bromocylcohexane 2-chlorobutane 2-bromobutane 2-chloro2-metylpropane 2-bromo-2-methylpropane Crotyl chloride Bromobenzene Benzyl chloride 1-chloroadamantene Methods/Techniques: Physiochemical Research: Reagent | Formula Weight | Density | Boiling Point | Melting Point | Color | 1-bromobutane | 137.023 g/mol | 1.2676 g/ml | 372-376 K | 160.7 K | Clear | 1-chlorobutane | 92.57 g/mol | .89 g/ml
Premium Oxygen Chemistry Carbon
Conclusion: Preparation of 1-Bromobutane The purpose of this experiment was to demonstrate the conversion of a primary alcohol‚ 1-butanol‚ to a primary bromoalkane‚ 1-bromobutane‚ a SN2 reaction. The conversion of 1-butanol to 1-bromobutane relies on sulfuric acid which plays two important roles. First‚ it protonates the alcohol of 1-butanol to form an oxonium ion which is a good leaving group. Secondly‚ it produces the hydrobromic acid‚ the nucleophile‚ which attacks 1-butanol causing the oxonium
Premium Marketing Management Strategic management
Title: Synthesis and Reaction of halogenoalkane‚ 1-bromobutane Aim: To prepare 1-bromobutane and investigate some of its reactions Materials and Apparatus: • Eye protection • Distillation Kit • Thermometer • Measuring cylinder • Teat pipette • Rack with 3 small test tubes • Beaker Chemicals: • Butan-1-ol (harmful and flammable) • Sodium bromide • Concentrated sulphuric acid (very corrosive) • Anhydrous sodium sulphate • Concentrated hydrochloric acid (corrosive) • Ethanol
Premium Hydrochloric acid Sulfuric acid Chemistry
Experiment 1: Preparation of 1-Bromobutane and Reactivity of Alkyl Halides Objective: The purpose of this lab is to prepare 1-bromobutane from 1-butanol in an acid-catalyzed substitution reaction. While the reaction would be expected to occur as SN2 due to the primary nature of the substrate‚ because H2SO4 is used as a solvent‚ the conditions are very polar and the reaction can proceed via an SN1 reaction. The main objective is to obtain test results to determine the mechanism of the reaction
Premium Nuclear magnetic resonance Organic reaction Chemistry
Preparation of 1-bromobutane from 1-butanol by SN2 reaction Objective: 1. To study the preparation of 1-bromobutane from 1-butanol by an SN2 reaction 2. To study the method of purification of an organic compound by simple extraction 3. To study the test of identification of alkyl halide Chemicals and Apparatus: ~18.0 g 1-butanol‚ ~20.0 g sodium bromide‚ 15 ml of concentrated sulfuric acid‚ anhydrous magnesium sulfate‚ ~10 ml of 5% aqueous sodium bicarbonate‚ ~1 ml of sodium iodide – acetone reagent‚ 1 ml of
Premium Sulfuric acid Alcohol Bromine
Bryan Westall NT1210 Lab 1.1 Lab 1.1: Reading Binary Exercise 1.1.1 Create a mapping similar to Figure 1-1 for the decimal number 2931 using either paper and pencil or a Word document. Exercise 1.1.2 Create a mapping similar to Figure 1-2 for the binary number 1102 using either paper and pencil or a Word document. 1102=7 (128) 27 (64) 26 (32) 25 (16) 24 (8) 23 (4) 22 (2) 21 (1) 20 1 1 0 Exercise 1.1.3 Create a mapping similar to Figure 1-2 for the binary number
Premium Binary numeral system Decimal Numerical digit
Lab #1 – Assessment Worksheet Performing Reconnaissance and Probing Using Common Tools Course Name and Number: _____________________________________________________ Student Name: ________________________________________________________________ Instructor Name: ______________________________________________________________ Lab Due Date: ________________________________________________________________ Overview In this lab‚ you explored the common tools available in the virtual lab environment
Free Performance Performing arts Copyright