Cesium fluoride → Butyl 2-(butyloxy)-2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-4-carboxylate

Participants

Reaction Conditions

Reaction Steps

To a 2 dram vial charged with 2-fluoro-5-methoxyphenylboronic acid (available from Aldrich) (2.323 g, 13.67 mmol), tetrakis(triphenylphosphine) palladium(0) (0.7897 g, 0.6834 mmol), cesium fluoride (0.8409 mL, 22.78 mmol), and 5.1 (1.50 g, 4.556 mmol), was added DME (20 mL), and the mixture was then heated at 90° C. overnight. The reaction was allowed to cool and then filtered and concentrated. The crude product was purified by combiflash (0 to 10% EtOAc/hexanes) yielding 5.2 (1.1530 g, 67.58% yield).

Provenance & Evidence