3-Chloro-1-(3,4-diethylphenyl)propan-1-one → HCID 22238300, compound

HRID 562804Notes

Reaction equation

HRID 562804 reaction equation
Cl[CH2:2][CH2:3][C:4]([C:6]1[CH:11]=[CH:10][C:9]([CH2:12][CH3:13])=[C:8]([CH2:14][CH3:15])[CH:7]=1)=[O:5]>S(=O)(=O)(O)O>[CH2:12]([C:9]1[CH:10]=[C:11]2[C:6](=[CH:7][C:8]=1[CH2:14][CH3:15])[C:4](=[O:5])[CH2:3][CH2:2]2)[CH3:13]

Participants

3

Reactant 1

HCID 222383023-Chloro-1-(3,4-diethylphenyl)propan-1-one

Product 1

HCID 22238300HCID 22238300, compound

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Conditions

Temperature
90 °C

Procedure

3-chloro-1-(3,4-diethylphenyl)-1-propanone (15.5 g) is dissolved in 66 mL concentrated sulphuric acid and heated to 90° C. for 4 hours. The reaction mixture is cooled, ice (70 g) is added, and the aqueous solution extracted twice with toluene. The organic layer is washed with sodium bicarbonate, saturated aqueous NaCl, and treated with activated charcoal and magnesium suphate. After filtration, the solvent is removed in vacuo. The product is purified by flash column chromatography (silica, hexane/ethylacetate 10:1), and further crystallised in hexane.

Workup

  1. temperatureThe reaction mixture is cooled
  2. extractionthe aqueous solution extracted twice with toluene
  3. washThe organic layer is washed with sodium bicarbonate, saturated aqueous NaCl
  4. additiontreated with activated charcoal and magnesium suphate
  5. filtrationAfter filtration
  6. customthe solvent is removed in vacuo
  7. customThe product is purified by flash column chromatography (silica, hexane/ethylacetate 10:1)
  8. customfurther crystallised in hexane

Sources & evidence

ORD record
ord-7210883e7b1e4438a61f47aba04d3e2b
Source dataset
uspto-grants-2011_11
Patent number
US08067437B2

Reaction notes

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