This article looks perfect! Dissolve your ketone (MDP2P, P2P or whatever) in alcohol and add to an acidified aqueous solution of an excess of your desired amine, then run 1.75V/50mA through the solution until the resistance of the solution has increased so much as the current drops to 5% of the initial value, then perform an acid/base wash and the crude amine (MDMA/MDE/Meth/whatever) freebase is isolated for vacuum distillation and/or HCl gassing.
The yield is
70-90%! Electricity is almost free, no soluble mercury salts are used, no watched, water-sensitive and/or expensive reducing agents and very little chemical waste.
1-(3-trifluoromethylphenyl)-2-propanone (2.02g, 10 mmol) was dissolved in a mixture of 10ml 70% aqueous ethylamine (150 mmol), 37.5ml 2M HCl and 50ml ethanol, the apparatus flushed with inert gas and electrolyzed at 10°C with a controlled potential of -1.75 Volt in a divided cell with a mercury pool as working electrode and a platinum anode. The current drops from an initial 50 mA to 2-3 mA when the necessary 1960 As has been consumed. Next the electrolyte is acidified to pH 1 by the addition of 2M HCl, the ethanol evaporated under reduced pressure, the aqueous phase washed with 2x50ml ether and 25% NaOH is then added until pH 14. The alkaline solution is extracted with 3x50ml ether, the combined organic extracts dried over MgSO4, filtered and the solvent evaporated in vacuo to give 2.0g (87%) N-ethyl-3-trifluoromethyl-amphetamine (Fenfluramine) freebase.Synthesis 1005-1007 (1987)https://www.thevespiary.org/rhodium/Rhodium/pdf/redamin.hg-cathode.pdf
Thanks to Endo1 for bringing the article to my attention.