HCID 89741698, compound → HCID 89740377, compound

HRID 2206631Notes

Reaction equation

HRID 2206631 reaction equation
Br[C:2]1[N:3]([CH:15]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH3:16])[C:4]2[C:9]([C:10]=1[C:11]([O:13][CH3:14])=[O:12])=[CH:8][CH:7]=[CH:6][CH:5]=2.[Br-].[CH:24]1([Zn+])[CH2:26][CH2:25]1>O1CCCC1.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>[CH:24]1([C:2]2[N:3]([CH:15]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH3:16])[C:4]3[C:9]([C:10]=2[C:11]([O:13][CH3:14])=[O:12])=[CH:8][CH:7]=[CH:6][CH:5]=3)[CH2:26][CH2:25]1

Participants

6

Reactant 2

HCID 89741698HCID 89741698, compoundHCID 178419765HCID 178419765, compound

Product 1

HCID 89740377HCID 89740377, compoundYield 82%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 2-bromo-1-(1-phenylethyl)-1H-indole-3-carboxylate (0.30 g, 0.84 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.09 g, 0.08 mmol) in tetrahydrofuran (20 mL) was added cyclopropylzinc(II) bromide (6.0 mL, 0.5 mol/L in tetrahydrofuran). The reaction mixture was stirred at reflux for 12 hours. After the reaction, it was cooled to room temperature and diluted with water (100 mL). The product was extracted with ethyl acetate (100 mL), dried over anhydrous sodium sulfate, concentrated and purified by column chromatography (silica gel: ethyl acetate:petroleum ether=1:10) to give the crude product methyl 2-cyclopropyl-1-(1-phenylethyl)-1H-indole-3-carboxylate (0.22 g, 82%) as a yellow oil.

Workup

  1. temperatureat reflux for 12 hours
  2. customAfter the reaction, it
  3. extractionThe product was extracted with ethyl acetate (100 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated
  6. custompurified by column chromatography (silica gel: ethyl acetate:petroleum ether=1:10)

Sources & evidence

ORD record
ord-41b6e037736743b2941462e3c658386d
Source dataset
uspto-grants-2016_06
Patent number
US09371331B2

Reaction notes

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