Early on in grad school, this was one of the first reactions I ever set up. Looking back on it now, I realized how rare it was for me see such a vivid outcome. Reminded me of a bowling ball (it was a particularly late night and right in the middle of quals season). True to form for grad school, I believe my yields were…lower than expected.
Reaction: CuSO4 for Cu(I)-catalyzed alkyne-azide click chemistry