1,2-Dimethoxyethane → HCID 11328547, compound

HRID 1787262Notes

Reaction equation

HRID 1787262 reaction equation
Br[C:2]1[C:10]2[O:9][CH2:8][CH:7]([C:11]3[CH:16]=[CH:15][C:14]([CH:17]([CH3:19])[CH3:18])=[CH:13][CH:12]=3)[C:6]=2[C:5]([CH3:20])=[C:4]([NH:21][C:22](=[O:28])[CH2:23][C:24]([CH3:27])([CH3:26])[CH3:25])[C:3]=1[CH3:29].[C:30]1(B(O)O)[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1.C(=O)([O-])[O-].[Na+].[Na+].COCCOC>C(OCC)(=O)C.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]>[CH:17]([C:14]1[CH:13]=[CH:12][C:11]([CH:7]2[C:6]3[C:5]([CH3:20])=[C:4]([NH:21][C:22](=[O:28])[CH2:23][C:24]([CH3:25])([CH3:27])[CH3:26])[C:3]([CH3:29])=[C:2]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[C:10]=3[O:9][CH2:8]2)=[CH:16][CH:15]=1)([CH3:18])[CH3:19]

Participants

7

Reactant 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 66827Phenylboronic AcidHCID 23113867N-(7-Bromo-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide

Product 1

HCID 11328547HCID 11328547, compoundYield 57.1%

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of N-(7-bromo-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide (300 mg, 0.654 mmol) obtained in Example 35, phenylboronic acid (88 mg, 0.720 mmol), and palladium (0) tetrakis(triphenylphosphine) (27 mg, 0.023 mmol) in an aqueous 2 M sodium carbonate solution (10 mL)-1,2-dimethoxyethane (5 mL) was refluxed with heating for 16 hours under a nitrogen atmosphere. The reaction solution was diluted with ethyl acetate. Insoluble materials were filtered off, and the filtrate was washed with saturated brine and dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:4) to obtain 170 mg (yield: 57%) of the title compound. Melting point: 178-182° C. (hexane-ethyl acetate).

Workup

  1. temperaturewas refluxed
  2. temperaturewith heating for 16 hours under a nitrogen atmosphere
  3. filtrationInsoluble materials were filtered off
  4. washthe filtrate was washed with saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. distillationthe solvent was distilled off under reduced pressure
  7. customThe obtained residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:4)

Sources & evidence

ORD record
ord-859c1da22d334c14a6c745b6d633db32
Source dataset
uspto-grants-2009_03
Patent number
US07507841B2

Reaction notes

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