Answer Happy

Complete the mechanism for the given Mannich reaction by adding any missing atoms, bonds, charges, curved arrows, and nonbonding electrons. The steps up to the formation of the iminium and the enol are pre-drawn for you. Use the skeleton provided in each subsequent box to help guide which bonds are formed or broken. Route to form iminium: H+ H :04H : Base -- H H Н. H H Base-H :0 -H :04H iminium H H H H Route to form enol H : Base H. enol

Step 1: Complete the structures of the the iminium and enol, Then use curved arrows to show the coupling step. Step 2: Complete the structure and use curved arrows to finish the deprotonation step. Select Draw Rings More Erase Select Draw Rings More Erase с H N o С H N o H 1L H H N 2 0 2 H

Step 3: Draw the final product. Do not draw H2O+. Select Draw Rings More Erase ///// C H N o 2 Q