Water → HCID 22248246, compound

HRID 914835Notes

Reaction equation

HRID 914835 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14](=[O:23])[CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2Br)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[N:24]1[CH:29]=[CH:28][CH:27]=[C:26](B2OCCCO2)[CH:25]=1.C(=O)([O-])[O-].[Cs+].[Cs+].O>CN(C)C=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(OCC)(=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14](=[O:23])[CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[C:26]2[CH:25]=[N:24][CH:29]=[CH:28][CH:27]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

8

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 41980053-(1,3,2-Dioxaborinan-2-yl)pyridineHCID 22248027HCID 22248027, compound

Product 1

HCID 22248246HCID 22248246, compoundYield 66.2%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

After dissolving 575 mg of 1-[1-(tert-butoxycarbonyl)piperidin-4-yl]-2-(2-bromophenyl)ethanone in 10 ml of N,N-dimethylformamide, there were added 489 mg of 2-(3-pyridyl)-1,3,2-dioxaborinane, 173 mg of tetrakis(triphenylphosphine)palladium(0) and 1.47 g of anhydrous cesium carbonate, and the mixture was stirred at 100° C. for 2 hours under a nitrogen atmosphere. Water was added to the reaction mixture, and extraction was performed with ethyl acetate. The organic layer was washed with water and saturated brine in that order and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (solvent: n-hexane/ethyl acetate) to obtain the title compound (379 mg, 66% yield).

Workup

  1. washThe organic layer was washed with water and saturated brine in that order
  2. dry with materialdried over anhydrous magnesium sulfate
  3. distillationthe solvent was distilled off under reduced pressure
  4. customThe residue was purified by silica gel column chromatography (solvent: n-hexane/ethyl acetate)

Sources & evidence

ORD record
ord-14f6414ff09c477ba41206e858c3448f
Source dataset
uspto-grants-2007_09
Patent number
US07265108B2

Reaction notes

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