Formaldehyde → 104880-54-8

Participants

Reaction Steps

To a 3% w/v aqueous solution of formaldehyde (15 ml) was added potassium carbonate (691 mg, 5 mmol) then trimethylmelamine (841 mg, 5 mmol). The reaction mixture was stirred at room temperature until the initially clear solution (pH 11.5) became cloudy (2-3 h) then set aside overnight (16 h). The white granular solid which separated was recovered by filtration, washed with water (4×5 ml) and the product dried in vacuo over anhydrous CaCl2. Yield 593 mg (52%); 1H-NMR spectrum δH (Me2SO-d6) 2.75 (app d, 3, HNCH3), 4.99 (br s, 4, HOCH2), 5.36 (br s, 2, OH) 6.61 (br s, 1, NH); mass spectrum (FAB; glycerol/thioglycerol matrix) m/z 229 ([M+H]+, 70%), 211 (229-H2O, 100%), 199 (229-CH2O, 35 %), 181 (199-H2O, 50%), 169 (199-CH2O, 30%). Anal. C8H16N6O2 requires C. 42.10; H, 7.07; N, 36.82: found C, 41.87; H, 7.01; N, 36.55%.

Provenance & Evidence