Sodium Carbonate → 2-(3-Fluoro-[1,1'-biphenyl]-4-yl)acetic acid

HRID 1594128Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([OH:11])=[O:10])=[C:4]([F:12])[CH:3]=1.[C:13]1(B(O)O)[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.C([O-])([O-])=O.[Na+].[Na+]>O.CC(O)C.O.[OH-].[Na+]>[C:13]1([C:2]2[CH:7]=[CH:6][C:5]([CH2:8][C:9]([OH:11])=[O:10])=[C:4]([F:12])[CH:3]=2)[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

Participants

Conditions

Temperature: 67.5 °C

Procedure

4-Bromo-2-fluoro-phenylacetic acid (0.25 gm, 1.1 mmole), phenylboronic acid (0.15 gm, 1.2 mmole) and 50% water wet 10% Palladium carbon (0.07 gm, 0.033 mmole Pd) were added to 10 ml of 5:1 water isopropanol mixture, then Na2CO3 (0.14 gm, 1.3 mmole) dissolved in 3 ml of water was added to the above mixture, the reaction was heated at 65-70° C. overnight, the reaction was cooled to room temperature, diluted with 20 ml of 70:15:1 i-PrOH/H2O/10% NaOH, filtered, the catalyst was washed with 20 ml×3 using the above mixture, the filtrate was acidified using 20% H2SO4, filtered and dried (0.2 gm, 83%) H1-NMR INOVA-500 (DMSO d6) δ 3.675 (s, 2H), 7.382-7.518 (m, 6H), 7.707 (d, J=7.5 Hz, 2H), 12.498 (s, 1H).

Workup

additionwas added to the above mixture
temperaturethe reaction was cooled to room temperature
filtrationfiltered
washthe catalyst was washed with 20 ml×3 using the above mixture
filtrationfiltered
dry with materialdried (0.2 gm, 83%) H1-NMR INOVA-500 (DMSO d6) δ 3.675 (s, 2H), 7.382-7.518 (m, 6H), 7.707 (d, J=7.5 Hz, 2H), 12.498 (s, 1H)

Sources & evidence

ORD record: ord-ac38cd044b424d1bb4e51e418e4da7e9
Source dataset: uspto-grants-2007_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07300931B2

Reaction notes

Loading…