Methyl isothiocyanate → 2-(4-Chloro-2-fluorophenyl)-2,3,4,5,6,7-hexahydro-3-(N-methylthiocarbamoylthio)-1H-isoindol-1-one

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Reaction Steps

In 20 ml of dichloromethane was dissolved 3.0 g of 2-(4-chloro-2-fluorophenyl)-2,3,4,5,6,7-hexahydro-3-mercapto-1H-isoindol-1-one, and 0.8 g of methyl isothiocyanate, together with one drop of triethylamine, was added to the solution, followed by stirring at room temperature for 5 hours. The dichloromethane was distilled off under reduced pressure, and the resulting crystals were washed with cold ethanol and dried, thereby producing 3.5 g (yield of 94%) of the subject compound. Recrystallization from ethanol yielded white crystals, 112°-114° C.

Provenance & Evidence