Water → 5-amino-3-(3-ethoxy-4-methoxyphenyl)-1-(2-hydroxyethyl)-1H-pyrazole-4-carbonitrile

Participants

Reaction Steps

2-((3-ethoxy-4-methoxyphenyl)(methoxy)methylene)malononitrile (200 mg, 0.78 mmol), 2-hydroxyethylhydrazine (0.056 mL, 0.78 mmol), and triethylamine (0.10 mL, 0.78 mmol) were combined in ethanol (5 mL) and heated to reflux for 90 minutes. The reaction was then cooled to RT, water was added and the aqueous phase was extracted three times with EtOAc, CH2Cl2, and CHCl3. The organic phase was concentrated and carried onto the next step without further characterization. ESI-MS (M+H)+ m/z calcd 303.1, found 303.0.

Provenance & Evidence