About 50 grams Iso made via LaBTop method was put in RB and added few grams of KOH,heated to 230 and held there few minutes with stirring.Iso turned a bit brown(probably due impurities or traces of safrole) but no noticeable reaction.Then turned up heat and iso was constantly boiling around 250 C.I think we could say that this method really works.
Writeup:
Put your safrole(sg >1.095) in a roundbottom flask,add 2% of KOH(technical grade is ok).Heat mix to 230 C(do NOT use condenser or water doesn't get out) and stir constantly for 30 minutes or so.Vacuumdistill directly from rx flask to obtain ~90% yield.Rx flask is easily cleaned with warm water,no soap,let alone acids and other nasty stuff like that,needed.Test via abacus method described above to make sure you got iso(i can't really see how this rx could be screwed up but to be 100% sure,test it).
