Res. Chem. Intermed.
, Vol. 29, No. 2, pp. 213– 226 (2003)
Also available online - www.vsppub.com
Cerium(IV) ammonium nitrate (CAN)-mediated
sulfonylation of styrenes: some interesting observations
, ANU AUGUSTINE, SREELETHA B. PANICKER, T. D. SUJA
and SINDHU MATHAI
Organic Chemistry Division, Regional Research Laboratory (CSIR), Trivandrum 695 019, India
Received 27 October 2002; accepted 2 December 2002
Abstract—Sulfonyl radicals generated by the oxidation of sodium arylsul nates with cerium(IV)
ammonium nitrate (CAN) undergo addition reaction with styrenes to give the sulfonylated products
in good yields.
: Cerium(IV) ammonium nitrate; sulfonyl radicals; styrenes; oxidative addition.
Sulfonylation of ole ns has been exploited as a method for the preparation of
organosulfones, which are useful intermediates in organic synthesis . The
general method for the preparation of sulfones consists of the addition of sulfonyl
radicals, generated from sulfonyl halides by exposure to light , by the action of a
peroxide , or by reduction with metallic reagents , in all cases yielding ole nic
compounds. Sulfonyl radicals have also been generated by the homolytic scission
To whom correspondence should be addressed.