p-Toluenesulfonic acid monohydrate → Methyl 2-acetamino-4-[(2-{1-[5-(4-t-butylphenyl)-4-hydroxy-3-thienyl]ethylidene}hydrazino)carbonyl]benzoate

Participants

Reaction Steps

To a suspension of 2-(4-t-butylphenyl)-3-hydroxy-4-methylcarbonylthiophene (54.8 mg, 0.2 mmol) and methyl 2-acetamino-4-hydrazinocarbonylbenzoate (50.2 mg, 0.2 mmol) in isopropyl alcohol (2 mL), tosylic acid monohydrate (11.4 mg, 0.06 mmol) was added, and the mixture was heated with reflux for 12 hours. The precipitated solid was filtered to obtain 84 mg of the desired product as a pale yellow solid (yield 83%).

Provenance & Evidence