O,O-Dipyridin-2-yl carbonothioate → HCID 22461231, compound

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Reaction Steps

To a solution of 6-amino-3-cyano-7-methylindole (0.155 g, 0.905 mmol) in methylene chloride (10 mL) is added di-2-pyridyl thionocarbonate (0.210 g, 0.905 mmol) followed by 4-dimethylaminopyridine (0.010 g, 0.0905 mmol). The resulting solution is stirred at room temperature for one hour followed by removal of the methylene chloride by rotary evaporation. The crude material is purified via silica gel column chromatography using 20% ethyl acetate/hexane as the eluting solvent. The product containing fractions are combined and the solvents removed by rotary evaporation to yield 0.154 g of 3-cyano-6-isothiocyanato-7-methylindole as a yellow solid (80% yield).

Provenance & Evidence