Cesium carbonate → HCID 86673860, compound

HRID 1527447Notes

Reaction equation

HRID 1527447 reaction equation
[F:1][C:2]1[C:7]([O:8][C:9]([F:12])([F:11])[F:10])=[CH:6][CH:5]=[CH:4][C:3]=1I.C([O-])([O-])=O.[Cs+].[Cs+].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.[C:66](=[NH:79])([C:73]1[CH:78]=[CH:77][CH:76]=[CH:75][CH:74]=1)[C:67]1[CH:72]=[CH:71][CH:70]=[CH:69][CH:68]=1>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:66](=[N:79][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]([O:8][C:9]([F:12])([F:11])[F:10])[C:2]=1[F:1])([C:73]1[CH:74]=[CH:75][CH:76]=[CH:77][CH:78]=1)[C:67]1[CH:72]=[CH:71][CH:70]=[CH:69][CH:68]=1

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 136809Benzophenone imineHCID 634876Binap, (A+-)-HCID 68283768HCID 68283768, compound

Product 1

HCID 86673860HCID 86673860, compound

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolvent

Procedure

To a solution of 2-fluoro-1-iodo-3-(trifluoromethoxy)benzene (25 g, 81 mmol) in dry toluene (200 mL) was added Cs2CO3 (38.7 g, 120 mmol), Pd2(dba)3 (7.42 g, 8.1 mmol), BINAP (10.8 g, 16.2 mmol) and benzhydrylideneamine (19.6 g, 108 mmol). The reaction mixture was refluxed for 8 h with stirring and then cooled to RT. The organic layer was washed with water and brine and then dried over MgSO4. After removal of solvent in vacuo, the residue was purified by column chromatography on silica gel (solvent gradient from 100% n-hexane to n-hexane/EtOAc 20:1) to afford the title compound as a pale yellow oil. 1H NMR (CDCl3, 400 MHz): δ 7.72 (s, 1H, ArH,), 7.70 (s, 1H, ArH), 7.45-7.42 (m, 1H, ArH,), 7.37-7.33 (m, 2H, ArH), 7.25-7.17 (m, 3H, ArH), 7.06 (s, 1H, ArH), 7.05 (s, 1H, ArH,), 6.84 (t, 1H, J=8 Hz, ArH), 6.78 (t, 1H, J=8 Hz, ArH), 6.67-6.64 (m, 1H, ArH).

Workup

  1. temperatureThe reaction mixture was refluxed for 8 h
  2. washThe organic layer was washed with water and brine
  3. dry with materialdried over MgSO4
  4. customAfter removal of solvent in vacuo
  5. customthe residue was purified by column chromatography on silica gel (solvent gradient from 100% n-hexane to n-hexane/EtOAc 20:1)

Sources & evidence

ORD record
ord-077fd326a9ff4b15a9b71788d62c25e9
Source dataset
uspto-grants-2015_07
Patent number
US09085555B2

Reaction notes

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