Phenylboronic Acid → HCID 66914131, compound

Participants

Reaction Steps

3-Phenyl-8-(trifluoromethyl)quinolin-4-ol: A solution of 3-bromo-8-(trifluoromethyl)quinolin-4-ol (3.2 g, 10.95 mmol) and phenyl boronic acid (2.67 g, 21.91 mmol) in 2:1 toluene:methanol (120 mL) and sat aq NaHCO3 (40 mL) is treated with Pd(PPh3)4 (760 mg) and heated at reflux overnight. The reaction is poured into water and extracted with ethyl acetate. The combined extracts are washed with 2N aq NaOH, water, brine, and dried with magnesium sulfate. The extracts are concentrated and the residue is chromatographed with 1:4 ethyl acetate:hexanes to afford the title compound as a yellow solid (6.4 g, 59%). mp 272-275° C.; MS (ESI) m/z 290; MS (ESI) m/z 288; HRMS: calcd for C16H10NF3O+H, 290.07927; found (ESI_FT, [M+H]1+), 290.07816.

Provenance & Evidence