2-Bromopropanedial → HCID 86624700, compound

Participants

Reaction Steps

The title compound was prepared in analogy to example 1 step e) from 78 mg (0.5 mmol) bromomalonaldehyde, 82 mg (1 mmol) sodium acetate and 131 mg (0.5 mmol) [3-methoxy-4-(4-methyl-imidazol-1-yl)-phenyl]-thiourea. The solvent was evaporated. The reaction was diluted with water and extracted twice with ethyl acetate and twice with methylene chloride/methanol 9/1. The combined organic layers were washed with brine, dried over sodium sulphate, filtered and the solvent was evaporated under reduced pressure. The crude product was stirred diethyl ether to yield 88 mg (56%) of 2-[3-methoxy-4-(4-methyl-imidazol-1-yl)-phenylamino]-thiazole-5-carbaldehyde as a yellow solid. MS ISP (m/e): 315.1 (100) (M+H)+. 1H NMR (DMSO-D6, 250 MHz): δ (ppm)=11.35 (br s, 1H), 9.80 (s, 1H), 8.27 (s, 1H), 7.70 (s, 1H), 7.55 (s, 1H), 7.38 (d, 1H), 7.33 (d, 1H), 7.07 (s, 1H), 3.82 (s, 3H), 2.15 (s, 3H).

Provenance & Evidence