Inexpensive protic ionic liquids, synthesized from di- or triamines and excess sulfuric acid, were used as solvents catalysts for the Beckmann rearrangement. The use of liquids in place oleum acid allowed base neutralization step, which is required conventional rearrangement, to be entirely avoided, thereby dramatically improving atom economy. Using a biphasic water/organic solvent extraction s...

Sulfuric acid is a common chemical that is widely used in industry and is found in consumer products (e.g., car batteries, cleaning products). In the United States sulfuric acid is ranked number one in terms of production volume. Sulfur trioxide is a precursor to the production of sulfuric acid. Oleum (fuming sulfuric acid) is sulfur trioxide absorbed in concentrated sulfuric acid. Sulfur triox...

The present article is concerned with identifying the Morisco healer Aparicio de Zubia as the author of a pamphlet on the "Oleum Magistrale" which, in 1566, was published at the instance of the Spanish government after Zubia's death and which, in 1574, was translated by the Elizabethan surgeon George Baker from what seems to have been a French intermediary version. I shall not presume to enter ...