Hydrazine → 4-Hydrazinylpyrido[3,4-d]pyrimidine

Participants

Reaction Steps

To a suspension of 4-Chloro-pyrido[3,4-d]pyrimidine (34)(1.65 g, 10 mmol) in anhydrous THF (10 ml) was added hydrazine (1M in THF, 30 ml, 30 mmol). The reaction mixture was stirred at room temperature for 5 hours whereupon a yellow precipitate formed. The solid was removed by filtration, washed with cold THF (10 ml) and dried to give the title compound (1.56 g, 96.9%) as the sole product which required no further purification. m/z (LC-MS, ESP): 162 [M+H]+, R/T=0.85 mins.

Provenance & Evidence