Acetic Acid → HCID 86762103, compound

Participants

Reaction Conditions

Reaction Steps

A 2 mL Biotage™ microwave was charged with solid KOH (18.0 mg, 0.326 mmol), water (0.2 mL), a solution of compound 2-2 (64.0 mg, 0.217 mmol) in EtOH (1.2 mL) and carbon disulfide (65 uL, 1.1 mmol). The vial was capped and stirred at rt until KOH dissolved then heated in a microwave synthesizer (Biotage Initiator™) at 110° C. for 10 min. Contents of the vial were transferred to a 20 mL scintillation vial, diluted with water (6 mL) and acidified by a dropwise addition of 10% aqueous AcOH. The resulting suspension was centrifuged, the supernatant was decanted and the resulting brownish precipitate was washed with 10% aqueous AcOH (3 mL) and water (three times, 3 mL). The precipitate was then dissolved in EtOAc and passed through a short plug of neutral alumina. The EtOAc solution was evaporated to dryness in vacuo to give the crude product as yellow solid. LR-MS (API-ES): calculated for C19H13ClN2S 336.1, observed m/e 337.0 (M+H)+ (Rt 3.12 min). The crude product was used in the next step without further purification.

Provenance & Evidence