1B. Write the mechanism for the Friedel Crafts Acylation reaction of ethyl benzene using acetyl chloride and aluminum chloride. What ratio of ortho-, para-, and meta- products would you expect? Explain why you expect that ratio.
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- What product would you expect to obtain from the reaction of benzene compound with chloroethane and aluminum chloride, AICI3.Write a reaction that could be carried out to synthesize 1-(4-methylphenyl)ethanol (reactants will be a combination of Grignard reagent and carbonyl compound).5A Explain which of the following statements are true and which are false. i. N,N'-dicyclohexylurea (DCU) is the dehydrating reagent that converts a carboxylic acid to the corresponding anhydride. ii. The fact that carbonyl compounds have a lower boiling point than alcohols with the same C atoms is because the molecular dipole moment of carbonyl compounds is less than that of alcohols. iii. 3-Methylbut-2-en-2-ol is the only tautomeric structure of 3- methylbutan-2-one.
- An unknown hydrocarbon A with the formula C6H10 reacts with 1 molar equivalent of H2 over a palladium catalyst to give B C6H12 (Rxn 1). Hydrocarbon A also reacts with OsO4 to give the glycol C (Rxn 2). A gives 5-oxohexanal on ozonolysis (Rxn 3). Draw the structures of A, B, and C. Give the reactions.How would you obtain(i) Picric acid (2, 4, 6-trinitrophenol) from phenol,(ii) 2-Methylpropene from 2-methylpropanol?You are required to synthesize 2-bromopentane from the reaction between an alkene with HBr. Which alkene, 1-pentene or 2-pentene, should you react with HBr in order to get 2-bromopentane? Give an explanation.
- 10. M and N are amines with the molecular formula C3H»N. Reaction of M with sodium nitrite and HCI releases nitrogen gas and produces a mixture of X and Y and Propanol while N produces a yellowish oily compound, S when reacted with the same reagents. Give the structures of M, N, X, Y, and S. Outline the synthesis of M from a suitable alkene.10. Compound X (C4H9Br) reacts by heating with NaOH in H2O to form Y. The compound Y then undergoes acid catalysed hydration by H2SO, in 180°C to form 2-methyl prop-1-ene. (e) Determine the structure of X and Y. (f) Predict a MAJOR product when compound Y reacts with H2SO4 in 140 C. (g) Draw a structural isomer of X. Name the isomer using IUPAC nomenclature. (h) Describe a chemical test to distinguish between compound Y and 1-butanol.An alkene with molecular formula C8H16 was obtained from ozonolysisreaction and give acetone and 2,2-dimethylpropanal as the product. Writethe chemical equation from the reaction
- Describe the product formed as a result of the reaction between cyclohexanone and 3-butene-2-one by also writing the mechanism of the reaction.The Friedel-Crafts Alkylation of p-xylene n-propyl bromide can result in an isopropyl as well as n-propyl substitution. A) Write the chemical equation involved in this reaction. B) Which will be the major and minor product? What do you expect will be the ratio of n-propyl to isopropyl substitution for p-xylene?3-Chloro-2-methylpropene reacts with sodium methoxide in methanol to form 3-methoxy-2-methylpropene. For each of the following changes in the reaction conditions, state whether the reaction rate would increase, decrease, or remain the same. Explain your reasoning. In some cases the identity of the major organic product would be expected to change; in such cases, give the expected major product. (a) the same quantities of reagents are dissolved in half the volume of methanol (b) 3-bromo-2-methylpropene is used in place of 3-chloro-2-methylpropene (c) sodium methanethiolate (CH3SNa) is used in place of of sodium methoxide