REDUCTION METHOD OF ARENESULFONAMIDE, PRODUCTION METHOD OF ARENESULFONIC ACID AND BINAPHTHYLDISULFONIC ACID

摘要

PROBLEM TO BE SOLVED: To obtain a corresponding reduction body from an arenesulfonamide with good yields.;SOLUTION: A N,N-dimethylnaphthalene-2-sulfonamide is reduced with 5 equivalents of Red-Al (NaAlH₂(OC₂H₄OCH₃)₂), so that a corresponding sulfinic acid is obtained with good yields. The sulfinic acid is oxidized with oxygen (1 atm), so that a corresponding naphthalene-2-sulfonic acid is obtained.;COPYRIGHT: (C)2015,JPO&INPIT