Entry Catalyst Conditions Reference 104 kobs (s-1)
(rate constant)
Half life
(t1/2) (h)
1   (NaBrO3)-(NaHSO3)   (NaBrO3)=1 × 10-3 mol dm-3
(NaHSO3)=2 × 10-3 mol dm-3
Temp=30°C
(30)   1.96   0.982  
2   DCSB in 1:1 water acid medium (HClO4)=0.1 mol dm-3
I=0.3 mol dm-3
(DCSB)=1 × 10-3 mol dm-3
Temp=30°C
(31) 1.9 1.01
3     Pd(II)   (IO4-)=1 × 10-4 mol dm-3 (OH-)=0.5 mol dm-3 Pd(II)=1 × 10-4mol dm-3 Temp=25°C (32)     3.8 0.506  
4 SDS (catalyst)+phen (promoter) (phen)=0.0125 mol dm-3 (SDS)=0.02 mol dm-3 Curent work 9 0.214
Table 3: A comparative study of different catalysts used in DMSO to dimethyl sulfone conversion.