Post 185131 (missing)
(hest: "New Amph. more potent than LSD", Serious Chemistry).Chromic: Dissolve the aromatic and one equivalent each of NaBr and H2SO4 in acetic acid, and then add two equivalents of 30% H2O2 dropwise with good stirring - it brominates just as good as free bromine.
Indeed, indeed ... :) So no nasty bromine vapours, and Uemura gladly confirms you get 92% 5-bromovanillin out of vanillin!
Now go ahead with Antochos OTC MeONa preparation to syringaldehyde.
Very nice, indeed...
anybee want to speculate if this would would with tert- butyl alcohol to give potassium tert-butoxide or does the alcohol need to be a straight chain?
I dunno. But check out this. They say the method works on any alcohol w/chain length 2-6 which forms a lower-boiling azeotrope w/benzene and water. Specific examples aren't given, but tert-BuOH is listed among them in the patent:
From
Patent US1712830 (http://l2.espacenet.com/dips/viewer?PN=US1712830&CY=gb&LG=en&DB=EPD)
:Post 236749 (missing)
(foxy2: "This is even better.", Chemistry Discourse)