Acetic Acid → HCID 58174068, compound

Participants

Reaction Steps

To a solution of N′-(3-cyanopyrazin-2-yl)-N,N-dimethylformamidine (prepared as in Albert and Ohta, J. Chem. Soc. C 1971, 3727-3730, which is expressly incorporated by reference herein; 2.0 g, 11.4 mmol) in ethyl alcohol (EtOH; 50 mL) was added 4-(2-aminoethyl)-phenol (4.7 g, 34 mmol) and acetic acid (3.9 mL, 4.1 g, 68 mmol). The solution was heated to reflux for 19 h, concentrated in vacuo, and the residue was slurried with H2O and suction filtered. The filter cake was washed with H2O and dried in a vacuum oven (80° C., 0.5 torr) to yield 4-[2-(pteridin-4-ylamino)-ethyl]-phenol (2.7 g) as a white solid: mp>210° C.; 1H NMR (DMSO-d6) δ 9.20 (s, 1H), 9.08 (s, 1H), 8.94 (s, 1H), 8.95 (t, J=6.0 Hz, 1H), 8.82 (s, 1H), 8.64 (s, 1H), 7.06 (d, J=8.5 Hz, 2H), 6.69 (d, J=8.2 Hz, 2H), 3.75 (t, J=6.2 Hz, 2H), 2.85 (t, J=7.6 Hz, 2H); ESIMS m/z 268 (M+).

Provenance & Evidence