I think I've accidentally run bromosafrole through an E1 reaction and ended up with a bunch of what I think is isosafrole.  I've searched and searched but can't find any information on bringing it back to safrole.  I mean isosafrole is great at all, but I don't have much use for it as I'm working with the halo derivatives..

Also, any tips on determining if this is actually isosafrole?  It smells similar to safrole but the smell is much weaker than safrole and has a bit of a chemical smell to it.  I'm showing density at about 1.12 g/cm3 which matches with literature.  Distills at about 96C at low vacuum.

Thoughts? 

Also....first post!  Hello Vespiary.  The forum's great and I hope to be contributing in the near future. 

check the boiling point without vacuum

or

see if it forms the pseudonitrosite dimer or not by reacting it with NaNO2/H2SO4 in ether  (isosafrole will form the dimer, safrole and bromosafrole will not form the dimer)

not sure if you will have much luck going from iso > safrole but you could always run the iso (if that's what it is) through a performic oxidation or use it to form the nitropropene via the pseudonitrosite route. The yields from that rxn are almost quantitative

good luck!

1%, great link there thanks.  Looks like I probably do have isosafrole.

antibody, I hate bringing my oil bath that high, but I may do it at atmospheric pressure just to be sure.  And yeah I'm thinking about the performic route.  I'm gonna have to get new supplies which is sort of a pain cause I'm trying to wrap things up and get through this as quick as possible, but it may be worth it.  I have right around 150g of isosafrole, which could be turned into something like 100g hunny.  It would be a shame to just toss it...

Remember that isosafrole has trans & cis isomers http://en.wikipedia.org/wiki/Isosafrole see properties. And the ratio of trans TO cis isomers with determine the melting & boiling points.

Further ref: http://www.drugfuture.com/chemdata/isosafrole.html

I've been curious if there were a direct way to turn isosafrole into safrole. It would be thermodynamically unfavorable, not that this would be make it impossible. AFAIK the only similar reaction is the olefin metathesis/ethenolysis, but that would in effect just cleave the terminal methyl, resulting in MD-styrene (and equimolar propylene). Couldn't find any info on TFSE. Maybe the only good way to do it is to just fucking sell the isosafrole for safrole!