🤓 Based on our data, we think this question is relevant for Professor Clizbe's class at UB.
We're being asked to determine the best reagents and condition for the given reaction.
Notice that we went from a 2-carbon alkyne to a 5-carbon carboxylic acid.
Step 1: Recall that alkynides can be formed via deprotonation of terminal alkynes. Alkynides react with 0˚ and 1˚ halides via an SN2 reaction to elongate a carbon chain.
In each reaction box, place the best reagent and conditions from the list below