I've never reached the expected yield after aminating our favourite ketone, just 1/2 - 2/3 - bad, i know.
I hate it when things like this happen, so i started to check all Al/Hg and post Al/Hg steps. I knew the
'error' must be there. The last two weeks i nerved you guys with questions about methylamine concentration
a.s.o, but everything was ok. Error: I just own a big buchner, which my aspirator could not pull, so i
did NOT use it, just gravity filtration. I was allways wondering why i am loosing so much of the
toluene/freebase mix, but i thought ok that's life (You are allowed to laugh here). Today i thought i should give it another try and i build an inlay for my buchner to narrow the surface area. My water aspirator could handle it now. After gasing, I threw in this sticky
coconutmilklike thing, i thought i'm dreaming, most of the toluene passed the filter ! After three gasings
+ filtering i was left with the expected yield and a lot of the toluene was still there...
OK guys, all together: clap your hands and laugh for a minimum of 10 seconds... Hope there is noone else out there, doing the same mistake as i, but as an excuse, i am just a computer scientist...
