| abstract |
Alpha-hydroxyketone acetals of the formula:n wherein Ar represents an aromatic group, R 1 represents a hydrogen atom or a saturated aliphatic group, or Ar and R' form a condensed ring together with the carbon atom to which they are bonded, and R 3 and R 4 independently represent alkyl groups or together represent an alkylene group, subject to the proviso that Ar does not represent phenyl or 4-chlorophenyl when R' is a hydrogen atom. The acetals (VI) can be converted into alpha-sulfonyloxyketone acetals and thence into alpha-aromatic group substituted alkanoic acids or esters. |