Phosphorus oxychloride → HCID 178490050, compound

Participants

Reaction Steps

The compound was synthesized starting from amino-4-(2,3-dimethoxyphenyl)butan-2-on-hydrochloride (223 mg; 1 mmol), benzimidazol-5-carboxylic acid (248 mg; 1 mmol), Lawesson's reagent (606 mg; 1.5 mmol), TEA (0.22 ml, 3 mmol) and POCl3 (0.137 ml; 1.5 mmol) as described above; yield: 0.019 g (5.2%); MS m/z: 366.2 [M+H]+; 1H-NMR (DMSO d6, 400 MHz): δ 2.94 (t, 2H, 3J=7.5 Hz); 3.14 (t, 2H, 3J=7.5 Hz); 3.72 (s, 3H); 3.78 (s, 3H); 6.81-6.83 (m, 1H); 6.89-6.91 (m, 1H); 6.96-7.00 (m, 1H); 7.62 (s, 1H); 7.79 (d, 1H, 3J=8.7 Hz); 7.90 (dd, 1H, 4J=1.7 Hz, 3J=8.7 Hz); 8.16 (br s, 1H); 8.97 (s, 1H); HPLC (METHOD [A]): rt 13.59 min (97.7%)

Provenance & Evidence