(Solved): Mostly dont understand the reactions, but please write out the step by step so I can understand bett ...

Mostly dont understand the reactions, but please write out the step by step so I can understand better

Question 5 (20 points). "Young lady, in this house, we obey the laws of thermodynamics!" a) (4 points) Draw the arrow pushing mechanism for the deprotonation of 2,4-hexadien-1-al with sodium methoxide. Identify the \( A C I D \) and the \( B A S E \). b) (7 points) The product of the reaction above has three additional major resonance structures. Draw them, and show curly arrows to denote the electron movement. You will need to add lone pairs to complete the structure. c) (3 points) Circle the most favorable of the three resonance structures (above), and explain why it is most stable. d) (3 points) Explain why one of the \( \mathrm{CH}_{3} \) hydrogens \( \left(\mathrm{H}_{2}\right) \) is preferentially removed by the base, as opposed to the aldehyde or alkene hydrogens \( \left(\mathrm{H}_{\mathrm{b}}\right. \) or \( \left.\mathrm{H}_{c}\right) \). e) (3 points) Which of the two molecules below (B or C) will have a \( C=O \) stretch in the \( \mathbb{R} \) spectrum at the LOWEST FREQUENCY? Explain your choice.