Potassium Carbonate → HCID 89180752, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 32 (100 mg, 0.19 mmol) in toluene (1 mL), ethanol (0.5 mL), water (0.5 mL) was added potassium carbonate (77 mg, 0.56 mmol), cyclopentenylboronic acid (25 mg, 0.22 mmol), and Pd(PPh3)4 (11 mg, 0.0094 mmol). The reaction mixture was stirred at 90° C. for 2 h. The reaction was cooled to rt and diluted with water and EtOAc. The layers were separated, dried, filtered, and concentrated in vacuo. The crude material was purified by column chromatography (EtOAc/hexanes) to give 96 mg of 77. 1H-NMR: 400 MHz, (CDCl3) δ: 7.82 (s, 1H), 6.72 (m, 1H), 5.60 (s, 1H), 4.17 (m, 1H), 4.11 (m, 1H), 2.92 (m, 2H), 2.63 (m, 2H), 2.53 (s, 3H), 2.10 (m, 2H), 1.17 (s, 9H), 1.13 (t, J=7 Hz, 3H).

Provenance & Evidence