Ammonia → 1-(3-methoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl)thiourea

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Reaction Steps

Step K (4): Methanolic ammonia (2.0 M, 20 mL, 40 mmol) was added to a flask charged with 4-(4-isothiocyanato-2-methoxyphenyl)-1-methyl-1H-pyrazole (1.46 g, 5.95 mmol). After 3 h, the reaction mixture was concentrated in vacuo. The solid was triturated with diethyl ether. The solid was collected by vacuum filtration and dried under high vacuum to afford 1-(3-methoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl)thiourea (1.35 g, 86% yield). LC-MS (M+H)+ 263.1.

Provenance & Evidence