反应详情

A solution of 2,6-bis(1,1-dimethylethyl)-4-[[5-(methylthio)-1,3,4-thiadiazol-2-yl]thio]phenol (0.25 g, 0.68 mmol) and sodium perborate (0.11 g, 0.71 mmol) in acetic acid (20 mL) is stirred at room temperature for 7 hours then stored at 0° C. overnight. The reaction mixture is diluted with ether and washed three times with water, then with a saturated solution of sodium bicarbonate and once with brine. Drying the organic phase over magnesium sulfate and evaporation gives a white solid which is chromatographed on silica gel eluting with a gradient of ethyl acetate:hexane (1:9, 2:8, 3:7, then 1:1) yielding 0.16 g (61%) of 2,6-bis(1,1-dimethylethyl)-4-[[5-(methylsulfinyl)-1,3,4-thiadiazol-2-yl]thio]-phenol; mp 162.0°-163.5° C.

1. washwashed three times with water
2. customDrying the organic phase
3. customover magnesium sulfate and evaporation
4. customgives a white solid which
5. customis chromatographed on silica gel eluting with a gradient of ethyl acetate:hexane (1:9, 2:8, 3:7