Water → HCID 68580571, compound

HRID 886830Notes

Reaction equation

HRID 886830 reaction equation
Br[C:2]1[CH:19]=[CH:18][C:5]2[CH2:6][N:7]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:8][CH2:9][O:10][C:4]=2[CH:3]=1.[NH:20]1[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]1.CC(C)([O-])C.[Na+].O>O1CCOCC1.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].CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C>[N:20]1([C:2]2[CH:19]=[CH:18][C:5]3[CH2:6][N:7]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:8][CH2:9][O:10][C:4]=3[CH:3]=2)[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]1

Participants

8

Reactant 4

HCID 962WaterHCID 8082PiperidineHCID 23676156Sodium t-butoxideHCID 68578192HCID 68578192, compound

Product 1

HCID 68580571HCID 68580571, compoundYield 92.1%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylCatalystHCID 312751,4-DioxaneSolvent

Procedure

A solution of tert-butyl 8-bromo-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (300 mg, 0.915 mmol), piperidine (0.297 ml, 3.00 mmol), X-phos (26.1 mg, 0.0546 mmol), tris(dibenzylideneacetone)dipalladium(0) (16.6 mg, 0.00187 mmol) and sodium tert-butoxide (131 mg, 1.37 mmol) in dioxane (6 ml) was stirred under an argon atmosphere for 1 hr at 80° C. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by NH silica gel column chromatography (hexane:ethyl acetate=2:1) to give the desired product (280 mg, 92.1%) as an oil.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by NH silica gel column chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-5247a26c872d4ed3bf58a0211ec0a954
Source dataset
uspto-grants-2012_08
Patent number
US08247403B2

Reaction notes

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