I assume, the main cutter would bee sugar - actually, that's what i attempted to get rid of when crystallizing it from water (actually, not all of it dissolved but anyway).
And well did the bromine go?
Ahhh, it's so confusing and embarassing - such an elementary thing and i can't do it
Actually, a iodination/hydroxylation was attempted on the same vanillin bee4 bromination - and the result was
a) Only about half of theoretical iodine reacted
b) There was lots of tar in hydroxylation stage
c) Xtraction w/CHCl3/MeOH (as described in the patent) gave a very small yield of impure xtals that immediately melted in hot water.
Obviously, smth must bee wrong w/the vanillin SWIM used - but is there a way to get rid of the impurities? A min qtty of chem pure vanillin would bee 1 kg and that'd bee an outrageous amt of money for SWIM.
Antoncho
P.S. I
must take its mp, definitely. What if it turns out to bee correct?