Answer the following with reference to the Reactions and Structures shown below in Figure 7. Provide the reagents necessary to complete the transformations shown in Reactions 1, 2, 3 and 4. Note more than one step may be needed. [4 ma For Reaction 1 with the help of a mechanism discuss the regiochemical outcome of the reaction. (8 ma. (iii) For either Reaction 2 or Reaction 3, with the help of a mechanism discuss the outcome of the reaction. As appropriate comment on any important regiochemical or stereochemical aspects of the reaction. [10 mar b. (i) Draw the structures and give the names of all the different alkenes that can result from an E2 elimination iodoalkane 4. 16 mar State which alkene you expect to be the major product of the elimination and account for your choice. (2 mar Br Br Reaction 2 OH OH Reaction 1 Reaction 3 Reaction 4 Br o lodoalkane 4 Figure 7