3-Fluorophenol → HCID 89580664, compound

HRID 1501049Notes

Reaction equation

HRID 1501049 reaction equation
[OH:1][CH:2]([C:4]1[CH:13]=[CH:12][C:7]([C:8]([O:10][CH3:11])=[O:9])=[CH:6][CH:5]=1)[CH3:3].[F:14][C:15]1[CH:16]=[C:17](O)[CH:18]=[CH:19][CH:20]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>O1CCCC1.O>[F:14][C:15]1[CH:20]=[C:19]([CH:18]=[CH:17][CH:16]=1)[O:1][CH:2]([C:4]1[CH:13]=[CH:12][C:7]([C:8]([O:10][CH3:11])=[O:9])=[CH:6][CH:5]=1)[CH3:3]

Participants

7

Reactant 4

HCID 97433-FluorophenolHCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 586417Methyl 4-(1-hydroxyethyl)benzoate

Product 1

HCID 89580664HCID 89580664, compoundYield 29.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
20 °C

Procedure

To a solution of methyl 4-(1-hydroxyethyl)benzoate (0.9 g, 5 mmol), 3-fluorophenol (627 mg, 5.6 mmol), triphenylphosphine (2.2 g, 8.4 mmol) in tetrahydrofuran (30 mL) was added diisopropyl azodicarboxylate (1.7 g, 8.4 mmol) at 0° C. The mixture was stirred at 20° C. for 12 hours. Water (15 mL) was added to the mixture and then extracted with ethyl acetate (35 mL×3). The combined organic phase was dried by sodium sulfate, and then filtered. The filtrate was concentrated in vacuo and the residue was purified by column chromatography (silica gel, petroleum ether/ethyl acetate=5:1) to give methyl 4-(1-(3-fluorophenoxy)ethyl)benzoate (400 mg, 29%).

Workup

  1. extractionextracted with ethyl acetate (35 mL×3)
  2. dry with materialThe combined organic phase was dried by sodium sulfate
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated in vacuo
  5. customthe residue was purified by column chromatography (silica gel, petroleum ether/ethyl acetate=5:1)

Sources & evidence

ORD record
ord-773de719b3fe412fb6207e6acad8beb1
Source dataset
uspto-grants-2015_12
Patent number
US09206128B2

Reaction notes

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