Toluene → HCID 44221361, compound

Participants

Reaction Steps

A mixture of butyl 4-iodobenzoate (3.5 g, 11 mmol), 4-trifluoromethylbenzene boronic acid (2.30 g, 12 mmol), potassium carbonate (4.77 g, 35 mmol), toluene (40 mL), and water (20 mL) was deaerated by sparging with nitrogen for 10 min. Tetrakis(triphenylphosphine)palladium(0) (0.27 g, 0.23 mmol) was added, and the mixture was heated at reflux for 3 h and then cooled to ambient. The organic layer was separated, washed with brine, dried (MgSO4), passed through short column of silica gel, and concentrated to deposit a gold solid. The product was purified by recrystallization from aqueous isopropanol to provide 1.03 g (28% of theory) of a white powder. 1H NMR (CDCl3): δ 1.00 (t, 3H), 1.5 (m, 2H), 1.8 (m, 2H), 4.36 (t, 2H), 7.66 (d, 2H), 7.72 (s, 4H), 8.14 (d, 2H).

Provenance & Evidence