| abstract |
A sulfonating agent represented by the general formula <IMAGE> wherein the groups R1 are the same or different and are each a lower alkyl group having 1 to 3 carbon atoms, n is an integer of 3, 4 or 5, m is an integer of 1 or 2, and n+m</=6, and a process for sulfonating an aromatic compound with use of the sulfonating agent. |