Water → HCID 89704778, compound

HRID 928957Notes

Reaction equation

HRID 928957 reaction equation
[CH2:1]([O:8][C:9]1[C:10]([F:27])=[C:11]([F:26])[C:12]([NH:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[F:25])=[C:13]([CH:17]=1)[C:14]([OH:16])=[O:15])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)(O)[O-].[K+].[CH2:33](Br)[C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1.O>CN(C=O)C>[CH2:1]([O:8][C:9]1[C:10]([F:27])=[C:11]([F:26])[C:12]([NH:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][C:20]=2[F:25])=[C:13]([CH:17]=1)[C:14]([O:16][CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)=[O:15])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 962WaterHCID 7498Benzyl BromideHCID 516893Potassium BicarbonateHCID 89704773HCID 89704773, compound

Product 1

HCID 89704778HCID 89704778, compoundYield 90%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 5-benzyloxy-3,4-difluoro-2-((2-fluorophenyl)amino)benzoic acid (19.17 g, 51.35 mmol) in DMF (30 mL) was added potassium bicarbonate (6.16 g, 61.62 mmol) followed by benzyl bromide (6.2 mL, 51.41 mmol). The mixture was stirred for 5 h at room temperature and then water (150 mL) was added. The solution was extracted with ethyl acetate (150 mL×3). The combined organic extracts were washed with water (100 mL×3) and brine (200 mL) sequentially, dried over Na2SO4, filtered and concentrated in vacuo to afford the corresponding product (21.42 g, 90% yield). 1H NMR (400 MHz, CDCl3): δ 8.51 (s, 1H), 7.51 (dd, J=8.5, 2.1 Hz, 1H), 7.46-7.36 (m, 10H), 7.12-7.06 (m, 1H), 7.03 (m, 1H), 6.94 (m, 1H), 6.85 (m, 1H), 5.33 (s, 2H), 5.15 (s, 2H).

Workup

  1. extractionThe solution was extracted with ethyl acetate (150 mL×3)
  2. washThe combined organic extracts were washed with water (100 mL×3) and brine (200 mL) sequentially
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-911510a788f043dd8f2e7ae603535d5a
Source dataset
uspto-grants-2016_03
Patent number
US09290468B2

Reaction notes

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