Synthesis 3. (32 pts) Do all three below. Turn your work in on separate sheets. DON'T work on this page. Don't show mechanisms here. Show your work on separate sheets, in order. Make each compound below using only the indicated carbon sources. You may use any other reagents, solvents, or organic compounds required as long as they don't contribute carbons to the final product. Make these things... .from these things. You must use acetylene. Other than that, use any alkane or alkene compounds contributing 3 or fewer carbons to the final compound. HO You may start with any non-cyclic hydrocarbons (containing only H and C atoms) needed. You may use any diene and dienophile as long as they are: acyclic hydrocarbons. (No rings, containing only H and C.) %3D