Retrosynthetic analysis is a process that is the reverse of designing the synthesis of a novel compound, which usually takes a multistep process. Using only one-step retrosynthesis, propose an alkene and the reagents needed to produce the product given below. (Note: the alkene should not undergo rearrangement.)

Draw the major product formed in each of the following reactions. Ignore stereoisomers.

Choose the reagents required to carry out the following reaction. 

Write appropriate chemical reactions to accomplish the following transformations:

a. propene → 1-bromopropane
b. propene → 2-bromopropane

Predict the major product of the reaction between styrene and hydrogen chloride with a catalytic amount of hydrogen peroxide. Write a mechanism that accounts for the formation of the major product.

Draw the major products of the reaction shown below. Note: D is the symbol for deuterium, a hydrogen isotope with 1 proton and 1 neutron.

Sketch the major product(s) of the reaction between the compound below and the following reagents: (a) HBr; and (b) HBr, H₂O₂.