Water → 4-Nitro-6-(trifluoromethyl)-1,3-benzodithiole-2-thione

Participants

Reaction Steps

15 g (0.037 mole) of III was dissolved in 125 ml of glacial acetic acid and heated to 90°-100° C. for 45 minutes. The mixture was poured into 500 ml of water, extracted with three 100 ml portions of methylene chloride. The organic extract was dried (Na2SO4) and solvent removed by distillation in vac. The residual solid was recrystallized from ethanol. There was obtained 6.0 g (55% theor.) of 4-nitro-6-trifluoromethyl-1,3-benzodithiole-2-thione, m.p. 163°-165° C. Analytical: Calcd. for C8H2F3NO2S3 : C, 32.32; H, 0.67; S, 32.32. Found: C, 32.18; H, 0.74; S, 32.21. Mass Spectrum mol. wt.=297. NMR(d6DMSO); 8.63δ(1H,m); 8.73(1H,m).

Provenance & Evidence