8.48 "How many different alkenes will produce 2,4-dimethylpentane upon hydrogenation? Draw them. 8.49 Compound A is an alkene that was treated with orone (followed by DMS) to yield only (CH, CH2CH)C=0 Identify the major product that is expected when compound A is treated with a peroxy acid (RCO,1) followed by aqueous acid (H30) 8.50 Suggest an efficient synthesis for each of the following transformations: Suggest an efficient synthesis for each of the following transformations: OH OH 0 (b) Suggest an efficient synthesis for each of the following transformations: Br 0 Suggest an efficient synthesis for each of the following transformations: CI %_& 0 (d) Suggest an efficient synthesis for each of the following transformations OH OH OH 8.51 Compound A has the molecular formula C HsBr. Treatment of compound A with sodium cthoxide yields only one elimination product (compound B) and no substitution products. When compound B is treated with dilute sulfuric acid, compound C is obtained, which has the molecular formula C-H, 0. Draw the structures of compounds A, B, and C