Methylamine → HCID 69219880, compound

Participants

Reaction Steps

A suspension of 5-cyano-1-(4-methylphenyl)-4-(methylthio)-2-[4-(methylthio)phenyl]-6-oxo-1,6-dihydropyrimidine (2 g, 5.3 mmol) (prepared according to the procedure disclosed in example 6) in ethanol (20 ml) with methylamine (0.33 g, 10.6 mmol) was refluxed for 2 hr. Then the reaction mass poured on to ice and the resulted solid filtered, washed thoroughly with water. The resulted solid purified by column chromatography using ethyl acetate and hexane mixture as eluent to yield title compound (0.55 g, yield 25.5%, mp 268-271° C., purity 97.34% by HPLC). 1H-NMR (CDCl3):δ 2.32 (s, 3H), 2.43 (s, 3H), 2.95 (d, 3H), 5.8 (s, 1H, D2O exchangeable), 6.95-6.97 (d, 3H), 7.02-7.04 (d, 1H), 7.11-7.13 (d, 1H), 7.22-7.26 (m, 3H). IR (KBr) cm−1: 3294, 2919, 2205 (—CN), 1666 (—C═O). MS m/z: 363.1 (M+).

Provenance & Evidence