Benzene → S-methyl N-[N'-methyl-N'-(diisopropylaminosulfenyl)carbamoyloxy]thioacetimidate

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Reaction Steps

Powdered potassium hydroxide (2.5 g), 4.7 g. 10.045 mole) of S-methyl-N-hydroxythioacetimidate, 0.11 g dicyclohexyl-18-crown-6, and benzene (200 mol) were combined and stirred 0.5 hr. at room temperature. Then 9.4 g (0.045 mole) of N-methyl-N-(diisopropylaminosulfenyl)carbamoyl fluoride were added. The mixure was stirred at room temperature for 1 hr., and then was water washed four times, dried (MgSO4), and the benzene solvent was removed under vacuum. The residue was recrystallized from diisopropyl ether to give 9 g (67.3 percent yield) of S-methyl N-[N'-methyl-N'-(diisopropylaminosulfenyl)carbamoyloxy]thioacetimidate, m.p. 79°-80° C.

Provenance & Evidence