Acid-catalyzed organic reactions, such as etherification, esterification, acetal synthesis,
cleavage, and interconversion, and pinacol rearrangement were carried out in the presence
of catalytic amounts of o-benzenedisulfonimide as Brønsted acid catalyst; the conditions were mild and selective.
The catalyst was easily recovered and purified, ready to be used in further reactions,
with economic and ecological advantages.
acid catalysis - ether synthesis - ester synthesis - acetal synthesis - pinacol rearrangement
