2-Bromo-6-methylpyridine → HCID 66705627, compound

HRID 425374Notes

Reaction equation

HRID 425374 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([C:12]2[N:13]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:25])=[O:24])[CH:14]=[C:15]([CH2:17][C:18]([CH3:22])([CH3:21])[CH2:19][CH3:20])[N:16]=2)([OH:11])[CH3:10])=[CH:4][CH:3]=1.Br[C:30]1[CH:35]=[CH:34][CH:33]=[C:32]([CH3:36])[N:31]=1.C[Sn](C)C.C[Sn](C)C>O1CCOCC1.O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Pd]>[CH3:21][C:18]([CH3:22])([CH2:19][CH3:20])[CH2:17][C:15]1[N:16]=[C:12]([C:9]([OH:11])([CH3:10])[CH2:8][C:5]2[CH:6]=[CH:7][C:2]([C:30]3[CH:35]=[CH:34][CH:33]=[C:32]([CH3:36])[N:31]=3)=[CH:3][CH:4]=2)[N:13]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:25])=[O:24])[CH:14]=1

Participants

7

Reactant 3

HCID 792052-Bromo-6-methylpyridineHCID 6327618HexamethylditinHCID 59140412HCID 59140412, compound2×

Product 1

HCID 66705627HCID 66705627, compound

Reagents, catalysts & solvents 3

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

Palladium tetrakis(triphenylphosphine) (79 mg, 0.07 mmol) was added to a degassed, ambient temperature solution of 2-[2-(4-bromophenyl)-1-hydroxy-1-methylethyl]-4-(2,2-dimethylbutyl)-N,N-dimethyl-1H-imidazole-1-sulfonamide (intermediate 11) (324 mg, 0.69 mmol), 2-bromo-6-methylpyridine (118 mg, 0.69 mmol) and hexamethylditin (225 mg, 0.69 mmol) in 1,4-dioxane (15 mL). After stirring at reflux overnight, the reaction mixture was diluted with water and extracted with methylene chloride. The combined organic extracts were dried (magnesium sulfate) and concentrated in vacuo. Chromatography over silica eluting with 0-50% ethyl acetate/hexane afforded 4-(2,2-dimethylbutyl)-2-{1-hydroxy-1-methyl-2-[4-(6-methylpyridin-2-yl)phenyl]ethyl}-N,N-dimethyl-1H-imidazole-1-sulfonamide.

Workup

  1. temperatureat reflux overnight
  2. extractionextracted with methylene chloride
  3. dry with materialThe combined organic extracts were dried (magnesium sulfate)
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-fb2060e9a74b459287153544a5830d1a
Source dataset
uspto-grants-2012_01
Patent number
US08106070B2

Reaction notes

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