Triethylamine → HCID 66616382, compound

Participants

Reaction Steps

To solution of 3-dimethylamino-2-(4-methyl-benzoyl)-acrylic acid ethyl ester (Tetrahedron, 2002, 58, 8581-8589; 0.567 g, 2.15 mmol) in EtOH (10 mL) was added 2-(4-fluoro-phenyl)-acetamidine hydrochloride (0.405 g, 2.15 mmol) and Et3N (0.90 mL, 6.5 mmol). The mixture was heated at reflux for 18 h, and then was diluted with water and extracted with EtOAc (2×). The combined organic layers were dried and concentrated. The resulting residue was purified via SiO2 chromatography (5-20% EtOAc/hexanes) to give 0.560 g (74%) of the title compound. MS (ESI): exact mass calcd. for C21H19FN2O2, 350.14; m/z found, 351.4 [M+H]+. H NMR (CDCl3): 8.97 (s, 1H), 7.51 (d, J=8.2, 2H), 7.38-7.35 (m, 2H), 7.27-7.26 (m, 2H), 7.01-6.97 (m, 2H), 4.32 (s, 2H), 4.23 (q, J=7.1, 2H), 2.42 (s, 3H), 1.16 (t, J=7.1, 3H).

Provenance & Evidence