Organic Chemistry Mechanism Challenge 2

The video tutorial explains a chemical synthesis mechanism, focusing on electron pushing arrows. It covers the use of NaCN in DMSO as a nucleophile, attacking an alkyne conjugated with a carbonyl. The process involves forming an enolate on an allene, closing a six-membered ring, and a tautomerization from keto to enol form to achieve an aromatic tricyclic structure.

What new insight or understanding did you gain from this video?