1.
J Org Chem
; 75(14): 4860-3, 2010 Jul 16.
Artículo
en Inglés
| MEDLINE
| ID: mdl-20557074
RESUMEN
Upon heating in a dry atmosphere, benzenehexasulfonic acid forms three cyclic anhydrides. Mono- and dianhydride do not hydrolyze readily due their flatter structures compared to the hydrolysis products. The trianhydride appears more to be reactive toward hydrolysis. In solutions, the mono- and dianhydride undergo ring-shift tautomerization, which is in the latter case shifted toward the para isomer.