2. Pyridine can undergo bromination reaction with Fe(lll) bromide as a catalyst. Only of the three product below (A - C) can be formed. Identify the only product that can be formed and explain your choice (hint: draw resonance structures of the sigma complex) Br Br Brz, FeBra Br A B 3. Dr. Xie and Dr. Ding have recently published the total synthesis of (-) Crinipellin A. Circle which functional group(s) could be made by: reduction of a ketone, ozonolysis, E1, Williamson ether synthesis and Diels-Alder reaction. (one of the above mentioned reaction cannot be applied to the molecule below) OH (-)-Crinipellin A