I stumbled upon...
Methamphetamine synthesis via reductive alkylation hydrogenolysis of phenyl-2-propanone with N-benzylmethylamine.
https://www.sciencedirect.com/science/article/abs/pii/0379073893902342
What if N-iso is less a cut.. and more a cartle fuckup synthesis similar to Meh MDMA Dutch dirt that's circulating any insites on why N-iso P2P is so common now? what if reductive alkylation fails and thus the impure meh meth we have around now...
Methamphetamine was synthesized by reductive alkylation hydrogenolysis of phenyl-2-propanone with
N-benzylmethylamine. The expected product
N-benzylmethamphetamine, once formed, undergoes hydrogenolysis to methamphetamine and toluene. The progress of the reaction, the intermediates formed during the reaction, and the products were analyzed by gas chromatography and mass spectrometry.