
%0 Journal Article
%A Giles, PR 
%A Marson, CM 
%T On the Reaction of Thiochroman-4-one and 3-(Hydroxymethylene)thiochroman-4-one With N-Chlorosuccinimide
%J Australian Journal of Chemistry
%D 1992/02/01
%V 45
%N 2
%P 439-443
%K 
%R https://doi.org/10.1071/CH9920439
%U https://www.publish.csiro.au/paper/CH9920439 
%X Treatment of 3-(hydroxymethy1ene)thiochroman-4-one (4) with N-chlorosuccinimide afforded efficient routes to 3-chlorothiochroman-4-one (5), 3-chlorothiochromone (6) and 2,3-dichlorothiochromone (7). Contrary to an earlier report, 3-formylthiochromone was not obtained from this reaction. The products obtained are rationalized in terms of C-chlorination, in contrast to the action of N-chlorosuccinimide on thiochroman-4one (1), for which S-chlorination is postulated. 
