Sodium Hydroxide → 1-(3-Methylanilino)phthalazine-4-carbaldehyde

Participants

Reaction Conditions

Reaction Steps

A suspension of 3.15 g (9.74 mmol) 1-(3-methylanilino)-4-([1,3,5]trioxan-2-yl)phthalazine in 150 ml H2SO4 (10% in H2O) is stirred for 7 h at 100° C. The suspension is cooled to RT and adjusted to alkaline pH with NaOH (20% in H2O), the title compound that precipitates out is filtered off and washed with water; 1H-NMR (DMSO-d6) 10.17 (s, HCO), 9.84 (s, HN), 9.02 (d, 1H), 8.67 (d, 1H), 8.03 (m, 2H), 7.8-7.6 (2 sb, 2H), 7.30 (t, 1H), 6.98 (d, 1H), 2.36 (s, 3H); FAB-MS (M−H)+=262.

Provenance & Evidence