Toluene → HCID 22176020, compound

HRID 1797733Notes

Reaction equation

HRID 1797733 reaction equation
[C:1]([O:5][C:6](=[O:30])[NH:7][CH2:8][C:9]1[N:10]([CH2:26][CH:27]([CH3:29])[CH3:28])[C:11](=[O:25])[C:12]2[C:17]([C:18]=1[O:19][CH2:20][CH2:21][CH2:22][CH3:23])=[CH:16][C:15](Br)=[CH:14][CH:13]=2)([CH3:4])([CH3:3])[CH3:2].[C:31]1(OB(O)O)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.C(=O)([O-])[O-].[Na+].[Na+].C1(C)C=CC=CC=1>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.O.C(O)C>[C:1]([O:5][C:6](=[O:30])[NH:7][CH2:8][C:9]1[N:10]([CH2:26][CH:27]([CH3:29])[CH3:28])[C:11](=[O:25])[C:12]2[C:17]([C:18]=1[O:19][CH2:20][CH2:21][CH2:22][CH3:23])=[CH:16][C:15]([C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)=[CH:14][CH:13]=2)([CH3:4])([CH3:3])[CH3:2]

Participants

8

Reactant 4

HCID 1140TolueneHCID 10340Sodium CarbonateHCID 78412Phenyl dihydrogen orthoborateHCID 22176221HCID 22176221, compound

Product 1

HCID 22176020HCID 22176020, compoundYield 89.4%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 962WaterSolvent2×

Procedure

A mixture of tert-butyl(6-bromo-4-butoxy-2-isobutyl-1-oxo-1,2-dihydro-3-isoquinolinyl)methylcarbamate (0.48 g, 1 mmol), phenylboric acid (0.15 g, 1.2 mmol), sodium carbonate (0.26 g, 2.5 mmol), toluene (10 ml), ethanol (2 ml) and water (2 ml) was stirred at room temperature under an argon atmosphere for 30 min. To the resulting mixture was added tetrakis(triphenylphosphine)palladium (58 mg, 0.05 mmol), and then the mixture was refluxed under an argon atmosphere for 10 h. The reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give tert-butyl(4-butoxy-2-isobutyl-1-oxo-6-phenyl-1,2-dihydro-3-isoquinolinyl)methylcarbamate (0.42 g, 89.4%) as crystals.

Workup

  1. temperaturethe mixture was refluxed under an argon atmosphere for 10 h
  2. extractionextracted with ethyl acetate
  3. washThe extract was washed with brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-b8494a968b9f4599a8dc8964bb13285e
Source dataset
uspto-grants-2006_04
Patent number
US07034039B2

Reaction notes

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