Iodine → HCID 70099609, compound

Participants

Reaction Steps

A mixture of 3-[3-(6-methoxy-p-tolyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione (1.34 g, 0.00300 mol), silver trifluoroacetate and methylene chloride is treated with iodine (1.14 g, 0.00450 mol) in portions, stirred overnight at room temperature, diluted with methylene chloride, washed with 1M sodium thiosulfate and brine, dried over anhydrous magnesium sulfate, and concentrated in vacuo to a brown oil which solidifies on standing. Recrystallization from ether affords the title compound as a light yellow crystalline solid (1.50 g, 87.2%, mp 210-212° C.).

Provenance & Evidence