Recently, the team of Prof. Zhang (East China Normal University, Shanghai) reported a new asymmetric heterocycle synthesis using gold catalysis (yes, you have understood by now, I am quite a big fan of gold catalysis). I propose two examples to solve, they are directly extracted from the paper. For the sake of the exercise, determining the stereochemistry of the transition states are optional.
Reference: Angew. Chem. Int. Ed. 2014, 4350-4354. link