| Popis: |
N-acetyl-4-methylsulphonyl-2,6-xylidine (I) has been prepared by the convenient method used before, involving thiocyanation of 2,6-xylidine and reduction of the thiocyano group with LiAlH4, followed by methylation and subsequent oxidation of N-acetyl-4-methylmercapto-2,6-xylidine to the corresponding sulphone. The latter compound (I) has an U.V. spectrum intermediate between those of phenylmethylsulphone and N-acetyl-p-methylsulphonylaniline, indicating that the extended resonance is sterically hindered. |
