Cesium fluoride → [4-(2-Azepan-1-yl-ethoxy)-phenyl]-[6-methoxy-2-(2,3,5-trifluorophenyl)-naphthalen-1-yl]-methanone

HRID 1513968Notes

Reaction equation

HRID 1513968 reaction equation
[N:1]1([CH2:8][CH2:9][O:10][C:11]2[CH:38]=[CH:37][C:14]([C:15]([C:17]3[C:26]4[C:21](=[CH:22][C:23]([O:27][CH3:28])=[CH:24][CH:25]=4)[CH:20]=[CH:19][C:18]=3OS(C(F)(F)F)(=O)=O)=[O:16])=[CH:13][CH:12]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[F-].[Cs+].Br[C:42]1[CH:47]=[C:46]([F:48])[CH:45]=[C:44]([F:49])[C:43]=1[F:50]>C(#N)C.[Pd].C1CCC(P(C2CCCCC2)C2CCCCC2)CC1.C1CCC(P(C2CCCCC2)C2CCCCC2)CC1.[Pd]>[N:1]1([CH2:8][CH2:9][O:10][C:11]2[CH:12]=[CH:13][C:14]([C:15]([C:17]3[C:26]4[C:21](=[CH:22][C:23]([O:27][CH3:28])=[CH:24][CH:25]=4)[CH:20]=[CH:19][C:18]=3[C:42]3[CH:47]=[C:46]([F:48])[CH:45]=[C:44]([F:49])[C:43]=3[F:50])=[O:16])=[CH:37][CH:38]=2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7]1

Participants

7

Reactant 3

HCID 25953Cesium fluorideHCID 27363991-Bromo-2,3,5-trifluorobenzeneHCID 57552509Trifluoromethanesulfonic acid 1-[4-(2-azepan-1-yl-ethoxy)-benzoyl]-6-methoxynaphthalen-2-yl ester

Product 1

HCID 57552540[4-(2-Azepan-1-yl-ethoxy)-phenyl]-[6-methoxy-2-(2,3,5-trifluorophenyl)-naphthalen-1-yl]-methanone

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 2734559Bis(tricyclohexylphosphine) palladium(0)CatalystHCID 6342AcetonitrileSolvent

Procedure

Dissolve trifluoromethanesulfonic acid 1-[4-(2-azepan-1-yl-ethoxy)-benzoyl]-6-methoxynaphthalen-2-yl ester (2.60 g, 6.53 mmol) in 200 mL acetonitrile and add to this bis(pinacoloato)diboron (1.5 g, 7.96 mmol), bis(tricyclohexylphosphine)palladium (0) (0.72 g, 1.50 mmol) and cesium fluoride (7.33 g, 67.0 mmol). Heat the reaction to 100° C. until LC/MS indicates all starting material is consumed. Add to this mixture 1-bromo-2,3,5-trifluorobenzene (2.00 g, 13.06 mmol) and another 720 mg of palladium catalyst and heat at 80° C. for 24 hours. Filter the reaction, concentrate filtrate and purify on a silica gel column eluting with a 0-10% methanol/methylene chloride gradient. The yield is 1.85 g (53%)

Workup

  1. temperatureHeat
  2. customthe reaction to 100° C. until LC/MS
  3. customis consumed
  4. filtrationFilter
  5. customthe reaction
  6. concentrationconcentrate filtrate
  7. custompurify on a silica gel column
  8. washeluting with a 0-10% methanol/methylene chloride gradient

Sources & evidence

ORD record
ord-99f37703d60e4d299ea6b20b3488e082
Source dataset
uspto-grants-2012_07
Patent number
US08217032B2

Reaction notes

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