The particular segment in question starts at about 28:00 minutes into the episode.
I regret not being able to provide a shorter clip, but for anyone interested, this was from the methamphetamine episode of Hamiltons Pharmacopeia.
This is another rough outline of a procedure which is not provided...
You can get safrole and hydrate it using dilute phosphoric acid to get MDP2Pol (3,4-MethyleneDioxyPhenyl-2-Propanol). If you use dilute sulfuric acid, the MDP2Pol will rearrange into MDP1Pol (3,4-MethyleneDioxyPhenyl-1-Propanol). Then, you can use manganese dioxide or PCC to oxidize it to MDP2P...