acording to what im looking at hydrogentribromide will make a more complete conversion the forensic guy who did the work up for review led it out of the window where all the insects died its "fuming TOXIC shit " also i may have read phosgene may be produced if done wrong , im trying to find out what conc, pyridine is needed plus water needs to be kept out ,
hi my bad it is borontribromide same as your post bbr3 not hydrogentribromide but it is toxic shit heres my source plus all the chem soc. refs at the bottom www.erowid.org/arhive/rhodium/chemistry/codeine,homebake.labs.html im not a chemist just curious have a good dream