Hydrochloric Acid → 3-(2-Chlorophenyl)-5-methoxybenzoic acid

HRID 588809Notes

Reaction equation

HRID 588809 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([O:11][CH3:12])[CH:10]=1)[C:5]([OH:7])=[O:6].[Cl:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1B(O)O.C([O-])([O-])=O.[Na+].[Na+].Cl>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([O:11][CH3:12])[CH:10]=1)[C:5]([OH:7])=[O:6]

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 10340Sodium CarbonateHCID 27343222-Chlorophenylboronic acidHCID 40600483-Bromo-5-methoxybenzoic acid

Product 1

HCID 532258043-(2-Chlorophenyl)-5-methoxybenzoic acidYield 75%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 3-bromo-5-methoxybenzoic acid (1 g, 4.06 mmol) and 2-chlorophenylboronic acid (1.27 g, 8.13 mmol) in 1,4-dioxane (10 mL) and water (2 mL), Pd(PPh3)4 (468 mg, 0.40 mmol) and Na2CO3 (2.15 g, 20.3 mmol) were added and the resulting mixture was stirred at 80° C. for 16 h. The mixture was allowed to cool to room temperature and acidified with aqueous HCl (1.0 M) to adjust the pH to 3-4. The mixture was extracted with ethyl acetate. The organic layer was dried over MgSO4, filtered and concentrated in vacuo to afford the desired product (800 mg, 75% yield) without further purification. ESI-MS m/z: 361.2 [M−H]−.

Workup

  1. temperatureto cool to room temperature
  2. extractionThe mixture was extracted with ethyl acetate
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-74a3399e92cb49719043f0f836a8101a
Source dataset
uspto-grants-2016_01
Patent number
US09227978B2

Reaction notes

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