In: Chemistry
Explain why the 1-bromobutane must be dried with anhydrous calicum chloride before purifying it by fractional distillation.Explain why wood applicator sticks should not be used to promote even boiling during reactions, even through they can be used for this purpose when removing solvent to concentrate a solution during recrystallization.
Chapter 16 describes three methods for converting alcohol to alky halides. (a) 47% HBr (2). Aqueous solution of NaBr and excess H2So4 (3). So2 bubbled into bromine suspended in water
For each of the following, choose the most appropriate synthesis method and explain why it it is the choice. (a) 1-bromobutane (2) . 2-bromo-2-methylpropane (c). 1-bromobutane
Write a reactions mechanis showing the formation of 1-butene as a byproduct in this experiment. Write each step on a separate line. Show all reactant and products for each stepInclude all mechanism arrows. Identify the rate determing (slow) step.
Write a reaction mechanism for the formation of di-n-butyl ether as a byproduct in this experiment. Write each step on a separate line. Show all reactants and product for each step. Include all mechanism arrows. Identify the rate determining (slow) step.
Explain how adding cocentrated sulfuric acid to the original distillate removes each of the three expected organic impurities from the 1-bromobutane. Draw the structure and equations to support your explanations. (1). (2). (3).