4-Aminophenol → 212141-69-0

Participants

Reaction Conditions

Reaction Steps

A mixture of 0.384 g (1.5 mmol) 1-chloro-4-(4-pyridylmethyl)phthalazine and 0.491 g (4.5 mmol) 4-aminophenol is heated under nitrogen atmosphere for 2 h at 150° C. After processing as described in Example 18, drying under HV (8 h at 100° C. and 24 h at 145° C.), title compound is obtained with a water content of 0.68%; m.p. 239-241° C.; 1H NMR (DMSO-d6) 9.19 (s, 1H), 8.99 (brs, 1H), 8.56 (d, 1H), 8.44 (d, 2H), 8.06 (d, 1H), 7.86-7.96 (m, 2H), 7.61 (d, 2H), 7.30 (d, 2H), 6.77 (d, 2H), 4.53 (s, 2H); ESI-MS: (M+H)+=329.

Provenance & Evidence