Complete the curved arrow mechanism of the following double elimination reaction when 1,2-dibromopropane is treated with two equivalents of sodium amide and heated in mineral oil. a) Use three curved arrows to show the elimination of the first hydrogen bromide. b) Use three curved arrows to show the elimination of the second hydrogen bromide. ENHE •NH HC Hac Bra , -NH3, Br c) Complete the structure of the organic product formed from the double elimination. N-H H3C- C-

& Use three eurved Brows to show the elimination of the first hydrogen bromide. Use three eurved arrows to show the and hydrogen bromide. ENHg Bri H₃C- -NH3, Br- c) Complete the structure of the organic product formed from the double elimination. HN-H H3C -C-

Select the descriptor (A, B, C, D): that best describes the relationship between the “reactants” and “products” below: “reactants” “products M 0000