Dichloromethane → Methyl 4'-fluoro-1,1'-biphenyl-4-carboxylate

HRID 2085655Notes

Reaction equation

HRID 2085655 reaction equation
Br[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=1.[F:12][C:13]1[CH:18]=[CH:17][C:16](B(O)O)=[CH:15][CH:14]=1.C(Cl)Cl.C([O-])([O-])=O.[Na+].[Na+]>C1(C)C=CC=CC=1.C(OCC)(=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[F:12][C:13]1[CH:18]=[CH:17][C:16]([C:2]2[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][CH:3]=2)=[CH:15][CH:14]=1

Participants

8

Reactant 4

HCID 6344DichloromethaneHCID 10340Sodium CarbonateHCID 12081Methyl 4-bromobenzoateHCID 2856454-Fluorophenylboronic acid

Product 1

HCID 1394448Methyl 4'-fluoro-1,1'-biphenyl-4-carboxylate

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of methyl 4-bromobenzoate (21.5 g, 100 mmol), 4-fluorophenylboronic acid (14.7 g, 105 mmol), Pd(dppf)Cl2.CH2Cl2(1.48 g, 2.0 mmol), and 2M Na2CO3 (100 mL) in toluene (200 mL) and was heated to reflux, stirred for 10 hours, diluted with ethyl acetate (200 mL), washed with water (100 mL) and brine (50 mL), dried (MgSO4), filtered, and concentrated. The concentrate was recrystallized from ethyl acetate/hexanes to provide the desired product. The mother liquor was concentrated and purified by flash column chromatography on silica gel with 10% ethyl acetate/hexanes to provide additional product. MS (DCI) m/e 231 (M+H)+.

Workup

  1. temperatureto reflux
  2. washwashed with water (100 mL) and brine (50 mL)
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe concentrate was recrystallized from ethyl acetate/hexanes

Sources & evidence

ORD record
ord-6a93aa2f3ba24914bcf89f764949a4bd
Source dataset
uspto-grants-2004_04
Patent number
US06720338B2

Reaction notes

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