Water → N-(4-((3-(4-Isopropylphenyl)-2-methyl-2-propenyl)oxy)-2,3,6-trimethylphenyl)formamide

HRID 2211702Notes

Reaction equation

HRID 2211702 reaction equation
[OH:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([NH:9][CH:10]=[O:11])=[C:4]([CH3:12])[C:3]=1[CH3:13].[H-].[Na+].Br[CH2:17][C:18]([CH3:29])=[CH:19][C:20]1[CH:25]=[CH:24][C:23]([CH:26]([CH3:28])[CH3:27])=[CH:22][CH:21]=1.O>CN(C)C=O>[CH:26]([C:23]1[CH:22]=[CH:21][C:20]([CH:19]=[C:18]([CH3:29])[CH2:17][O:1][C:2]2[CH:7]=[C:6]([CH3:8])[C:5]([NH:9][CH:10]=[O:11])=[C:4]([CH3:12])[C:3]=2[CH3:13])=[CH:25][CH:24]=1)([CH3:28])[CH3:27]

Participants

6

Reactant 4

HCID 962WaterHCID 24758Sodium hydrideHCID 21961295N-(4-hydroxy-2,3,6-trimethylphenyl)formamideHCID 68707986HCID 68707986, compound

Product 1

HCID 73856746N-(4-((3-(4-Isopropylphenyl)-2-methyl-2-propenyl)oxy)-2,3,6-trimethylphenyl)formamideYield 63%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of N-(4-hydroxy-2,3,6-trimethylphenyl)formamide (3.00 g, 16.7 mmol) in N,N-dimethylformamide (30 ml) was added at 0° C. under a nitrogen atmosphere sodium hydride (a 60% dispersion in liquid paraffin, 0.74 g, 18.4 mmol) and the resulting mixture was stirred at the same temperature for 10 minutes. To the reaction solution was added 1-(3-bromo-2-methyl-1-propenyl)-4-isopropylbenzene (4.66 g, 18.4 mmol) and the resulting mixture was stirred at room temperature for 30 minutes. Water was added into the reaction solution and the product was extracted twice with ethyl acetate. The combined extracts were washed with water, dried on magnesium sulfate, and then concentrated under reduced pressure. The resulting residue was crystallized from ethyl acetate-hexane to obtain 3.70 g (63% yield) of the title compound. Melting point: 153-155° C.

Workup

  1. stirringthe resulting mixture was stirred at room temperature for 30 minutes
  2. extractionthe product was extracted twice with ethyl acetate
  3. washThe combined extracts were washed with water
  4. customdried on magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue was crystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-28e438a7f5604f93aeadfbf5f1793de4
Source dataset
uspto-grants-2006_09
Patent number
US07101867B2

Reaction notes

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