Potassium Phosphate, Tribasic → (4'-{1-ethyl-1-[3-methyl-4-((E)-4,4,4-trifluoro-3-hydroxy-3-trifluoromethyl-1-butenyl)-phenyl]-propyl}-3-fluoro-2'-methyl-biphenyl-4-yl)acetic acid methyl ester

HRID 546936Notes

Reaction equation

[CH3:1][O:2][C:3](=[O:13])[CH2:4][C:5]1[CH:10]=[CH:9][C:8](Cl)=[CH:7][C:6]=1[F:12].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].[CH2:51]([C:53]([C:72]1[CH:77]=[CH:76][C:75](/[CH:78]=[CH:79]/[C:80]([C:86]([F:89])([F:88])[F:87])([OH:85])[C:81]([F:84])([F:83])[F:82])=[C:74]([CH3:90])[CH:73]=1)([C:56]1[CH:61]=[CH:60][C:59](B2OC(C)(C)C(C)(C)O2)=[C:58]([CH3:71])[CH:57]=1)[CH2:54][CH3:55])[CH3:52]>C1(C)C=CC=CC=1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O>[CH3:1][O:2][C:3](=[O:13])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([C:59]2[CH:60]=[CH:61][C:56]([C:53]([CH2:54][CH3:55])([C:72]3[CH:77]=[CH:76][C:75](/[CH:78]=[CH:79]/[C:80]([OH:85])([C:86]([F:88])([F:89])[F:87])[C:81]([F:84])([F:83])[F:82])=[C:74]([CH3:90])[CH:73]=3)[CH2:51][CH3:52])=[CH:57][C:58]=2[CH3:71])=[CH:7][C:6]=1[F:12]

Participants

Conditions

Temperature: 100 °C

Procedure

(4-Chloro-2-fluoro-phenyl)acetic acid methyl ester (Example 40; 26.5 mg, 0.131 mmol), palladium acetate (2.0 mg, 0.009 mmol), 2-dicyclohexylphosphino-2′,6′-dimethoxy-1,1′-biphenyl (7.2 mg, 0.018 mmol), potassium phosphate (56 mg, 0.263 mmol) and water (0.1 mL) were added to a solution of (E)-4-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-1,1,1-trifluoro-2-trifluoromethyl-3-buten-2-ol (Example 26-(5); 50 mg, 0.088 mmol) in toluene (1 mL). After replacement with nitrogen, the mixture was stirred at 100° C. overnight. Then, the reaction mixture was filtered through amino silica gel, and the filtrate was 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 (26.6 mg, 50%).

Workup

filtrationThen, the reaction mixture was filtered through amino silica gel
concentrationthe filtrate was concentrated under reduced pressure
customThe resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record: ord-ecf2ea702a9c46edae804d6b972fb01f
Source dataset: uspto-grants-2011_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07935688B2

Reaction notes

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