tert-Butyl isocyanate → HCID 178440907, compound

Participants

Reaction Steps

1-(1,1-Dimethylethyl)-3-{[4-(1,1-dimethylethyl)phenyl]methyl}-2,4,6(1H,3H,5H)-pyrimidinetrione. A mixture of t-butyl isocyanate (571 uL, 5.0 mmoles) and 4-t-butylbenzylamine (880 uL, 5.0 mmoles) in dry dichloromethane was stirred for 1 hour. Dichloromalonate (486 uL, 5.0 mmoles) was added and the mixture was heated under reflux for 1 hour. The mixture was washed with 1N hydrochloric acid and evaporated onto silica gel. Flash chromatography (10-35% ethyl acetate-hexane) gave the title compound (1.3 g, 79%) 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 1.32 (s, 9 H) 1.63 (s, 9 H) 3.60 (s, 2 H) 4.99 (s, 2 H) 7.37 (d, J=2.78 Hz, 4 H).

Provenance & Evidence