Water → HCID 22238083, compound

HRID 1743386Notes

Reaction equation

HRID 1743386 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([CH3:12])[C:10]=1[CH3:11])[N:7]([CH:13]=[O:14])[CH:6]([CH3:15])[CH2:5]2.Cl[CH2:17][C:18]([CH3:20])=[CH2:19].C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[CH3:15][CH:6]1[CH2:5][C:4]2[C:8](=[C:9]([CH3:12])[C:10]([CH3:11])=[C:2]([O:1][CH2:19][C:18]([CH3:20])=[CH2:17])[CH:3]=2)[N:7]1[CH:13]=[O:14]

Participants

6

Reactant 4

HCID 962WaterHCID 112413-Chloro-2-methyl-1-propeneHCID 11430Potassium CarbonateHCID 22238064HCID 22238064, compound

Product 1

HCID 22238083HCID 22238083, compoundYield 96.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A suspension of 2,3-dihydro-5-hydroxy-2,6,7-trimethyl-1H-indole-1-carbaldehyde (0.5 g, 2.4 mmol), 3-chloro-2-methyl-1-propene (0.29 mL, 2.9 mmol) and potassium carbonate (0.50 g, 3.6 mmol) in DMF (6 mL) was stirred at 60° C. for 14 hours under the nitrogen atmosphere. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate two times. The combined organic layers were washed with water and saturated brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was subjected to silica gel columns chromatography (hexane-ethyl acetate 3:1) to obtain 0.60 g of the title compound.

Workup

  1. extractionthe mixture was extracted with ethyl acetate two times
  2. washThe combined organic layers were washed with water and saturated brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-0349468f72964b50bd23b8bd76089e4a
Source dataset
uspto-grants-2006_03
Patent number
US07008940B1

Reaction notes

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