3. (18) a. (10) Reaction of compound A below with hydrogen bromide converts it to a mixture of two products. Draw the chemical structures of these two products in the spaces provided. Write the steps in a mechanism that shows how the two products can be formed from the same intermediate. Be sure to show the following: (1) the structure of any intermediates that are formed during the mechanism; (2) what, if anything, is added or lost during each step of the mechanism; (3) any non-zero formal charges found on the structures that you write. REMEMBER: You may not use any materials except those that are given in the equation.
b. (4, 2 each) Identify which product would have been formed from a 1,2-addition and which product would have been formed from a 1,4-addition of the HBr.
c. (4, 2 each) Identify which product would be expected to be the "kinetic product" and which would be expected to be the "thermodynamic product."