Benzaldehyde → HCID 178526885, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-methyl-5-nitropyrimidine-4,6-diol (4.7 g, 27.5 mmol) and benzaldehyde (42 mL, 414 mmol) was treated with piperidine (21.3 mL, 215.3 mmol). The reaction mixture was heated to 90° C. for 2 hrs. The temperature was then increased to 120° C. for 30 min. After cooling the reaction mixture to ambient, methanol (10 mL) and diethyl ether (200 mL) were added sequentially. The resulting solid was collected by filtration and washed with 5% aqueous hydrochloric acid to give 5-nitro-2-[(E)-2-phenylvinyl]pyrimidine-4,6-diol (4.5 g). 1H NMR (400 MHz, DMSO-d6): δ 8.15 (d, 1H, J=16.4 Hz), 7.15 (m, 2H), 7.54 (m, 3H), 6.81 (d, 1H, J=16.4 Hz). MS (m/z) 260 (M+1).

Provenance & Evidence