Av. Golounin et al., INVESTIGATION OF THE REACTIONS OF PYROCATECHOL DERIVATIVES WITH ALBR3BY NMR-SPECTROSCOPY, Russian chemical bulletin, 46(6), 1997, pp. 1110-1112
Alkylpyrocatechols are dealkylated by AlBr3 in CH2Br2 The formation of
stable carbenium ions (tert-butyl, methylcyclopentyl, and 1-adamantyl
) was detected by H-1 NMR spectroscopy. Pyrogallol and 2,3-dihydroxyna
phthalene are coordinated with ALBr(3) in the tautomeric keto form, an
d 2-mercapto-4-methylphenol forms a complex in the hydroxy form.