The mass spectra of the arylsulphonyl derivatives of methyl acetates

Abstract

The spectra of arylsulphonyl derivatives of methyl acetates revealed a variety of skeletal rearrangement ions. The influence of the aryl substituent on simple fragmentation, rearrangement by carbon-oxygen bond formation, elimination of ketene after alkoxy migration to the ortho position of the ring and skeletal rearrangement by means of elimination of sulphur dioxide is discussed.