Helios:
Not really, either MDA or MDMA can be made in one step from MDP2P/PMK using sodium cyanoborohydride in methanol and the appropriate amine or methylamine salt.
You can also get MDA from MDP2P/PMK using the Leuckart reaction which involves forming an amide following by hydrolysis. This method is messier but sound.
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Ok ok
You're right. But that was just a trap to see who knows too much for their own good. It was already obvious that you do
I guess what I was thinking of was the synthetic route that most small time chemists would be using with precursor acquisition being a concern. I imagine sodium borohydride and cyano borohydride are harder to come by without raising eyebrows. But if you have the ketone in hand, hydroxylamine, aluminum foil and some mercury metal are easy to come by, but add an extra step since you have to form the oxime. If you consider that a step.
So why isn't there more MDA being produced? I imagine some of the big labs may even go through MDA as an intermediate before N-methylation to MDMA. Doesn't make good business sense. I suppose it's supply and demand. MDA freebase is even easier to distill than MDMA freebase isn't it? My knowledge is based on browsing the hive years ago, so don't use me as a reference. And it's highly unlikely that this big evil labs bother distilling the freebase anyways.
Fishing through my benzo destroyed memory, I also remember reading about the substituting PPA (or its isomers) with (pseudo)ephedrine via standard reaction conditions (whatever they were at the time, cyanogen bromide or the obviously less deadly method) . Apparently this wasn't a good drug candidate due to some adverse side effects. Does anybody know why?
And does anyone want to suggest what the effect of replacing the oxazoline ring with an oxazole ring. Extra double bond between the two quaternary carbons. I know this change in planarity is not insignificant, the only reason I bring it up is because the different diastereomers of the parent compound all show activity. So maybe the binding site is pretty premiscous.