I need help with synthesis. Methcathinone HCl from Propiophenone

[HIT MONKEY]

What's the right way to prepare 40% aqueous methylamine solution?

 

[Throw-off]

There is a guide to prepare 40% aqueous methylamine solution in Uncle Festers cook book.

 

[rampage]

type this into bbgate search bar Methylamine Freebase Solution Preparation