A. Khazaei, F. Abbasi, A. Moosavi‐Zare
Mar 7, 2016
Citations
0
Influential Citations
4
Citations
Journal
Research on Chemical Intermediates
Abstract
A new N-bromo sulfonamide reagent, namely N,2-dibromo-6-chloro-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine-7-sulfonamide 1,1-dioxide, was synthesized and used as a new and highly efficient catalyst for the preparation of 9-aryl-1,8-dioxo-octahydroxanthene derivatives by the condensation reaction of dimedone (5,5-dimethylcyclohexane-1,3-dione) and various arylaldehydes. Mechanistically, it is interesting that in situ generation of the Br+ ion from the catalyst is successfully catalyzed by this reaction under neutral media.Graphical Abstract