When one equivalent of 1,3-butadiene reacts with one equivalent of HCl, two possible products can result, depending upon the conditions of the reaction flask. If the reaction is run at room temperature, 3-chloro-1-butene is the predominant product, whereas 1-chloro-2-butene is the predominant product if the reaction flask is heated to 150 deg C.
Which of these products is formed under what is known as thermodynamic control, and explain mechanistically why this product predominates under thermodynamic conditions.
Which of these products is formed under what is known as kinetic control, and explain mechanistically why this product predominates under so-called kinetic conditions.