Potassium Phosphate, Tribasic → (4'-{1-ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-4-methoxy-2'-methyl-biphenyl-3-yl)-acetic Acid Methyl Ester

HRID 547148

Reaction equation

HRID 547148 reaction equation
[CH3:1][O:2][C:3](=[O:14])[CH2:4][C:5]1[CH:10]=[C:9](Br)[CH:8]=[CH:7][C:6]=1[O:12][CH3:13].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].[CH2:52]([C:54]([OH:87])([CH2:85][CH3:86])/[CH:55]=[CH:56]/[C:57]1[CH:62]=[CH:61][C:60]([C:63]([CH2:82][CH3:83])([C:66]2[CH:71]=[CH:70][C:69](B3OC(C)(C)C(C)(C)O3)=[C:68]([CH3:81])[CH:67]=2)[CH2:64][CH3:65])=[CH:59][C:58]=1[CH3:84])[CH3:53].C(=O)(O)[O-].[Na+]>C1(C)C=CC=CC=1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O>[CH3:1][O:2][C:3](=[O:14])[CH2:4][C:5]1[CH:10]=[C:9]([C:69]2[CH:70]=[CH:71][C:66]([C:63]([CH2:64][CH3:65])([C:60]3[CH:61]=[CH:62][C:57](/[CH:56]=[CH:55]/[C:54]([CH2:85][CH3:86])([OH:87])[CH2:52][CH3:53])=[C:58]([CH3:84])[CH:59]=3)[CH2:82][CH3:83])=[CH:67][C:68]=2[CH3:81])[CH:8]=[CH:7][C:6]=1[O:12][CH3:13]

Participants

9

Reactant 5

HCID 62657Potassium Phosphate, TribasicHCID 516892Sodium BicarbonateHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 21999895Methyl 2-(5-bromo-2-methoxyphenyl)acetateHCID 57463789(E)-3-ethyl-1-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-1-penten-3-ol

Product 1

HCID 57709004(4'-{1-ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-4-methoxy-2'-methyl-biphenyl-3-yl)-acetic Acid Methyl EsterYield 87%

Reagents, catalysts & solvents 3

HCID 167845palladium(II) acetateCatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Conditions

Temperature
100 °C

Procedure

(5-Bromo-2-methoxy-phenyl)-acetic acid methyl ester (Example 180-(1); 45.1 mg, 0.174 mmol), palladium acetate (2.7 mg, 0.012 mmol), 2-dicyclohexylphosphino-2′,6′-dimethoxy-1,1′-biphenyl (9.5 mg, 0.023 mmol), potassium phosphate (74 mg, 0.348 mmol) and water (0.2 mL) were added to a solution of (E)-3-ethyl-1-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-1-penten-3-ol (Example 28; 56.7 mg, 0.116 mmol) in toluene (2 mL). After replacement with nitrogen, the mixture was stirred at 100° C. for 1.5 hours. The reaction mixture was then poured into a saturated aqueous sodium bicarbonate solution, followed by extraction with dichloromethane. The organic layer was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=2:1) to give the target compound as a colorless oil (54.7 mg, 87%).

Workup

  1. extractionfollowed by extraction with dichloromethane
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-6aae3b1f83c24ae9812c7cb7f6023948
Source dataset
uspto-grants-2011_05
Patent number
US07935688B2

Linked notes

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