Diethyl dithiophosphate, potassium salt → HCID 86672534, compound

Participants

Reaction Conditions

Reaction Steps

To a round-bottom flask, was added a solution of methyl 5-cyano-2-cyclopropyl-4-methylbenzoate (compound 190.3, 220 mg, 0.920 mmol, 1.00 equiv, 90%) in tetrahydrofuran (6 mL). A solution of O,O′-diethyl dithiophosphate (300 mg, 1.61 mmol, 2.00 equiv) in water (1.5 mL) was added to the solution, and the resulting mixture was stirred overnight at 80° C. in an oil bath (CAUTION: significant gas evolution occurs—this and all other reactions described herein should be carried out in well ventilated fume hoods). After cooling to ambient temperature, the mixture was concentrated in vacuo. The residue was purified using silica gel column chromatography with ethyl acetate/petroleum ether (5:1) as eluent. The collected fractions were combined and concentrated in vacuo to furnish 100 mg (39%) of methyl 5-carbamothioyl-2-cyclopropyl-4-methylbenzoate as a yellow solid.

Provenance & Evidence