1,3-OXATHIANE RING FORMATION THROUGH INTRAMOLECULAR PUMMERER PEACTION OF ALKYL ortho-HYDROXYMETHYLPHENYL SULFOXIDES

摘要

The intramolecular Pummerer rearrangement of 2-(2-alkyl-sulfinylphenyl)-2-propanols (1a,1c-1g) yielded,1,3-oxathianes (2a,2c-2g) in the presence of p-toluenesulfonic acid and molecular sieves 3A .Alkyl halides were converted into 2,3-oxathiane derivatives in three steps via this rearrangement.