Ethanol → 5,6-Dipyridinyl 2,3-pyrazinedicarbonitrile

Participants

Reaction Steps

Into a 250 mL round bottomed flask are placed, 2,2'-pyridil (8.48 g, 40 mmol), diaminomaleonitrile (4.32 g, 40 mmol) and 125 mL of ethanol. The flask is fitted with a magnetic stirrer and a condenser, and refluxed for 30 minutes. The mixture is allowed to cool, and 10 mL of water is added. Filtration yielded 8.9 g of crude product as a beige solid. The solid is boiled in benzene (400 mL) and filtered hot. The red filtrate is discarded giving 5.2 g of the title compound as a pale beige solid.

Provenance & Evidence