Question 6. Azulene reacts preferable through electrophilic aromatic substitution at the C1 position. Draw the mechanism of the reaction with all steps, including formation of the electrophile (use Cl₂/FeCl3 as reaction condition), and indicate why the C1 is the favored site of substitution. C1

D Question 3 Shown below is an arrow pushing mechanism. Which atom was the nucleophile in this reaction? [Select] Which atom was the electrophile in this reaction? [Select] What was the leaving group in this reaction? [Select]

Which of the following method is the best method for the synthesis of hexanal        A.) Method: Ozonolysis, Reactant: Ozone, Substrate: 1-cyclopentyl-1-hexene       B.) Method: Reduction, Reactant: LiAlH₄, Substrate: hexanoic acid       C.) Method: Oxidation, Reactant: H₂CrO₄, Substrate: hexanol       D.) Method: Oxidation, Reactant: KMnO₄, Substrate: hexanol       E.) None of the given choices

Aspirin can be converted to a white precipitate B using the following method.  1) Draw the structures of the intermediate A and the product B 2) Draw the mechanism for the reaction between aspirin and sodium hydroxide under reflux.