translate English to French: The sulfonation of benzene-SO2X (X = CH3, OCH3, OH, and Cl) and of 1- and 2-naphthalene-SO2X (X = CH3, OCH3, and Cl) with sulfur trioxide in nitromethane as solvent has been studied.
On a étudié la sulfonation des benzène-SO2X (X = CH3, OCH3, OH et Cl) et des naphtalène-1- et 2-SO2X (X = CH3, OCH3, et Cl) par le trioxyde de soufre dans le nitrométhane.