Give the product of the following reactions:
a.
b. Given the stereochemical or rerranfged product of the following reaction.
i.
ii.
iii.
iv.

Explanation

a.
b. i.
ii. The nucleophile `Br^(-)` reacts at either of the two `bar e` deficient sites.

iii. The double bond shifts to give an allylic conjugated diene from which the isomers are formed.

iv.
The synchronous migration of Ph provides greater assistance in the removal of `H_(2)O` from the protonated alcohol than does an (Me) group.