Ethanol → HCID 23114018, compound

HRID 1787268Notes

Reaction equation

HRID 1787268 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]([NH:33][C:34]1[CH:35]=[C:36](B(O)O)[CH:37]=[CH:38][CH:39]=1)(=[O:32])[CH3:31].C(=O)([O-])[O-].[Na+].[Na+].C(O)C>C(COC)OC.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]>[C:30]([NH:33][C:34]1[CH:39]=[C:38]([C:2]2[C:10]3[O:9][CH2:8][CH:7]([C:11]4[CH:12]=[CH:13][C:14]([CH:17]([CH3:18])[CH3:19])=[CH:15][CH:16]=4)[C:6]=3[C:5]([CH3:20])=[C:4]([NH:21][C:22](=[O:28])[CH2:23][C:24]([CH3:27])([CH3:25])[CH3:26])[C:3]=2[CH3:29])[CH:37]=[CH:36][CH:35]=1)(=[O:32])[CH3:31]

Participants

8

Reactant 4

HCID 702EthanolHCID 10340Sodium CarbonateHCID 157274(3-Acetamidophenyl)boronic acidHCID 23113867N-(7-Bromo-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide

Product 1

HCID 23114018HCID 23114018, compoundYield 86%

Reagents, catalysts & solvents 3

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
150 °C

Procedure

A solution of N-(7-bromo-3-(4-isopropylphenyl)-4,6-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-3,3-dimethylbutanamide (321 mg, 0.7 mmol) obtained in Example 35, (3-(acetylamino)phenyl)boronic acid (188 mg, 0.7 mmol), palladium(0) tetrakis(triphenylphosphine) (40.5 mg, 0.035 mmol), and an aqueous 2 N sodium carbonate solution (1.05 mL) in dimethoxyethane (2.1 mL)-ethanol (0.7 mL) was reacted with heating at 150° C. for 5 minutes in a microwave reactor. The reaction solution was cooled to room temperature, diluted with water, and extracted with ethyl acetate. The filtrate was washed with saturated brine and dried over sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to obtain 308 mg (yield: 86%) of the title compound. Melting point: 247-248° C. (ethyl acetate-hexane).

Workup

  1. temperatureThe reaction solution was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. washThe filtrate was washed with saturated brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-7eda4f957b4a4067806aa8d928b1227c
Source dataset
uspto-grants-2009_03
Patent number
US07507841B2

Reaction notes

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