R. Giovannini et M. Petrini, LICLO4 MEDIATED SUBSTITUTION OF BETA-PHENYLSULFONYL-GAMMA-OXO ARENEBUTANENITRILES BY ORGANOMAGNESIUM REAGENTS, Synlett, (10), 1996, pp. 1001
A direct substitution of the phenylsulfonyl group is observed during t
he reaction of Grignard reagents with beta-phenylsulfonyl-gamma-oxo ar
enebutanenitriles in the presence of LiClO4. Primary, secondary and fu
nctionalized organo magnesium reagents can be profitably used for this
procedure.