Phenol → HCID 22351358, compound

HRID 432107Notes

Reaction equation

[Br:1][C:2]1[CH:17]=[CH:16][C:5]([C:6]([O:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[O:7])=[C:4](F)[CH:3]=1.[C:19]1([OH:25])[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[Br:1][C:2]1[CH:17]=[CH:16][C:5]([C:6]([O:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[O:7])=[C:4]([O:25][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[CH:3]=1

Participants

Conditions

Temperature: 85 °C

Procedure

Phenylmethyl 4-bromo-2-fluorobenzoate (Example 189, 260 mg, 0.84 mmol) was combined with phenol (160 mg, 1.68 mmol, 2.0 eq.) and solid potassium carbonate (580 mg, 4.21 mmol, 5.0 eq.) in anhydrous N,N-dimethylformamide and was heated at 85° C. for 5 hours. The mixture was cooled and partitioned between diethyl ether and water. The aqueous layer was separated and extracted with fresh ether. The organic layers were combined, washed with brine (4×), dried (MgSO4), and concentrated in vacuo to a crude oil. The crude was purified by flash chromatography on silica gel eluted with 95:5 hexanes/ether to provide the title compound as a colorless oil that crystallized upon standing (110 mg, 34%); 1H NMR (300 MHz, CDCl3) δ 7.84 (d, 1H), 7.39-7.27 (m, 7H), 7.17-7.10 (m, 1H), 6.98-6.91 (m, 2H), 6.85 (d, 2H), 5.30 (s, 2H); Rf 0.51 (4:1 hexanes/diethyl ether).

Workup

temperatureThe mixture was cooled
custompartitioned between diethyl ether and water
customThe aqueous layer was separated
extractionextracted with fresh ether
washwashed with brine (4×)
dry with materialdried (MgSO4)
concentrationconcentrated in vacuo to a crude oil
customThe crude was purified by flash chromatography on silica gel
washeluted with 95:5 hexanes/ether

Sources & evidence

ORD record: ord-400375243066421fb70a162f54b95efc
Source dataset: uspto-grants-2003_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06660752B2

Reaction notes

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