Question

Show a stepwise mechanism for the following products using curved arrows.

1. Is based on HX additions to alkenes

2. Is based on addition reactions to ketones

tox.de HCI

Answer 1

d u boty is to 3° carbocation 1° combocation řce (more stable) ī : Cless stable) Conjugated diene takes up Ht to form more stable .3° combocation. 3° carbocation rearranges to less. stable to combocation . More substituted alkene product i.e. ② is thermo- -dynomic product. When temperature is high enough. 1. O es major product Less substituted alkene product lie. ® is kinetic sroduct which is formed from more stable 3"carbon -cation. When temperature is low enough, ® is product. major

CH3 1110 Attack of grignard hand from above plane of paper. CH3 HOH m. Okrem timer - АО-ча 3 YILI CHO paper below plane from of paper, rignard Attack of От март "ICHE rigmand for - - Laos 0 H internally that two in oxygen of Magnesium at epoxide group s-membered sings alkoxide attack such a way are formed.