90476-25-8Relevant articles and documents
THE PREPARATION, SPECTRAL PROPERTIES, STRUCTURES, AND BASE-INDUCED CLEAVAGE REACTIONS OF SOME α-HALO-β-KETOSULFONES
Grosset, Stuart J.,Dubey, Pramod K.,Gill, Glen H.,Cameron, Stanley T.,Gardner, Patrick A.
, p. 798 - 807 (2007/10/02)
The halogenation of β-ketosulfones such as α-methylsulfonylacetophenone (1) and benzenesulfonylacetone (10) can be effected with sulfuryl chloride or pyridinium bromide perbromide.Regiochemical control can be achieved by control of stoichiometry and/or the reaction conditions.Detailed 1H and 13C nmr, and mass spectra are recorded for a series of halogenated β-ketosulfones, together with structures by X-ray crystallography for 1, 2-chloro-2-methylsulfonyl-1-phenylethanone (2), chloromethyl methyl sulfone (4), and α-chloroacetophenone (21).Results from these studies are used to suggest a reason for the difficulty associated with substitution reactions of α-halosulfones.
