Potassium Carbonate → HCID 58228533, compound

Participants

Reaction Conditions

Reaction Steps

(1E,4E)-2-Amino-8-(1-oxo-1,3-dihydroisobenzofuran-5-yl)-N,N-dipropyl-3H-benzo[b]azepine-4-carboxamide was prepared as follows, substituting 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isobenzofuran-1(3H)-one for 4-(methoxycarbonyl)phenylboronic acid. (1E,4E)-2-amino-8-bromo-N,N-dipropyl-3H-benzo[b]azepine-4-carboxamide (75.0 mgs, 0.206 mmol), 4-(methoxycarbonyl)phenylboronic acid (55.6 mgs, 0.309 mmol, tetrakis(triphenylphosphine)palladium(0) (23.8 mgs, 0.021 mmol), 2M aqueous potassium carbonate (0.309 ml, 0.618 mmol) were combined in 2 mls of acetonitrile in a microwave reaction vial. This mixture was heated in a microwave to 100° C. for 30 minutes. The mixture was then diluted with EtOAc, washed twice with brine, dried over sodium sulfate, and concentrated under reduced pressure. Preparative thin layer chromatography (2×0.5 mm plates, 7% MeOH/DCM) was then used. 1H NMR (400 MHz, CDCl3) δ 7.96-8.00 (m, 1H), 7.78-7.82 (m, 1H), 7.72-7.74 (m, 1H), 7.52-7.55 (m, 1H), 7.38-7.42 (m, 1H), 7.30-7.35 (m, 1H), 6.85 (s, 1H), 5.37 (s, 2H), 3.60-3.71 (m, 2H), 3.39-3.53 (m, 4H), 2.85 (m, 2H), 1.59-1.75 (m, 4H), 0.90-0.99 (m, 6H); m/z (APCI-pos) M+1=418.2.

Provenance & Evidence