ChemistryGhost - 28-1-2013 at 13:11
3,4-dihydroxycinnamic acid or caffeic acid
Could it be decarboxylated to 3,4 dihydroxyvynylbenzene?
[Edited on 28-1-2013 by ChemistryGhost]
bbartlog - 28-1-2013 at 14:05
http://pubs.acs.org/doi/abs/10.1021/ja01176a098