Water → HCID 21243220, compound

Participants

Reaction Steps

To a solution of 3,4-dihydro-6-(4-methoxy-3-methylthiophenyl)-1,3-dimethyl-4-(2,4,6-trimethylphenylimino)-2(1H)-pyrimidinone (1.5 g) in N,N-dimethylformamide (15 ml) was added m-chloroperbenzoic acid (1.58 g), and stirred at 5°-10° C. for 30 minutes, and at ambient temperature for 5 hours. To the reaction mixture was added water (50 ml), and extracted with ethyl acetate. The organic layer was washed with aqueous sodium bicarbonate solution, dried over sodium sulfate, and evaporated. The residue was chromatographed on silica gel, eluting with chloroform. The fractions containing a sulfonyl compound were collected, dissolved in 1-N-hydrochloric acid and neutralized by aqueous sodium bicarbonate solution to give powdery 3,4-dihydro-6-(4- ro methoxy-3-methylsulfonylphenyl)-1,3-dimethyl-4-(2,4,6-trimethylphenylimino)-2(1H)-pyrimidinone (0.78 g).

Provenance & Evidence