please help me! explain this. thank you

H H-C H-C O C-H H HC CH CH COOCH COOCH 2. What reactants, (if any) would vield the following Diels-Alder adducts? Comments 3. Treatment of (2644) 2.4-hexadiene with HBr produces 1.2 and 1.4 addition products. Illustrate the details of reaction mechanism that leads to formation of these products, 4. When 1-3-butadiene is treated with H Brat-80 C 3-bromo-1-butene (81%) and 1-bromo- 2 butene (19) are formed when the reaction is run at room temperature the same two products form but with a different distribution: 3 bromo-1-butene (44) and 1-bromo-2- butene (50%) Use a sketch of a reaction energy profile diagram and the concept of thermodynamic vs. kinetic control to support a narrative explanation of this experimental result. Recall that terminalalkenes are higher in energy than internal ilkenes. Also keep in mind that the reaction mechanism involves two steps but there is a single reaction intermediate