Question

Question 8: ABCDE Question 9: ABCDE 10) Elimination Reaction Mechanisms: Propose a mechanism to show how the reaction below might occur. Include all reaction intermediates and electron-flow arrows. (6 points) H2SO4 он

Elimination Reaction Mechanism: Propose a mechanism to show how the reaction below might occur. Include all reaction intermediates and electron-flow arrows

Answer 1

Ho-g-oh Hasou (step-11 - Proton abstraction from ald. step-2 - Elimination of H₂O molecule. (20 carbocation) step-3 1- Now there can be two possibility - 6 1,2-methyl shift to form 3 - carbocation Cas 30 more stable than 20-carbocation) (2) Ring Expansion. Generally Ring expansion dominate as it remones the angle strain in u-membered ring (Now upon Ring Expansion there is removal of angle strain & formation of 3 - ear bocation) (0 step-y - Proton Abstraction. Clince the soy has been used as catalyst so what goes into the reaction that again comes out as Ht)

+H₂O steps H8 G H + H Soy 4,504 the