Reacción #2298617

Ecuación de reacción

(7-methylthieno[3,2-d]pyrimidin-4-yl)hydrazine hydrochloride

(7-Methylthieno[3,2-d]pyrimidin-4-yl)hydrazine hydrochloride

3-pyridinecarboxaldehyde

→

3-pyridinecarboxaldehyde(7-methylthieno[3,2-d]pyrimidin-4-yl)hydrazone

Rendimiento 71.0%

Disolventes

ethanol

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturawas heated
2. 2
   Temperaturaat reflux for 4 hours
3. 3
   Filtraciónthe solid product was collected by vacuum filtration
4. 4
   Otrorecrystallized from methanol

Procedimiento

A suspension of (7-methylthieno[3,2-d]pyrimidin-4-yl)hydrazine hydrochloride (5, 1.7 g, 7.9 mmol) and 3-pyridinecarboxaldehyde(1.1 g, 10.3 mmol) in ethanol (30 mL) was heated at reflux for 4 hours. After cooling to room temperature, the solid product was collected by vacuum filtration and recrystallized from methanol to yield 3-pyridinecarboxaldehyde(7-methylthieno[3,2-d]pyrimidin-4-yl)hydrazone (1.5 g, 71% yield) as white needles.

Fuente