T. Kusumoto et al., ANTI-SELECTIVE ALKYLATION OF CARBOXYLATE ENOLATES WITH 2-SULFONYLOXYALKANES - A NEW ROUTE TO OPTICALLY-ACTIVE 2-ARYLALKANOIC ACIDS, Tetrahedron letters, 36(7), 1995, pp. 1071-1074
Reaction of arylacetic acid enolates with 2-tosyloxyalkanes gave with
high anti-selectivity 2-aryl-3-methylalkanoic acids which were useful
synthetic intermediates of ferroelectric liquid crystals.