How to Reproduce Disiclepropyl Ammonium

I followed the procedures in that paper and tried it over and over and over again I was not able to get any of the amines. It's hard to reproduce every single synthesis because it might require some expensive or exotic material most labs don't have access to so yeah it's tricky but I commend you for taking this sort of thing seriously as it's important for people to to not pollute the scientific literature with BS.