1-Bromo-2-Chloroethane → 1-(3-Methylphenyl)cyclopropane-1-carbonitrile

HRID 2170716Notes

Reaction equation

HRID 2170716 reaction equation
[C:1]1([CH3:10])[CH:6]=[CH:5][CH:4]=[C:3]([CH2:7][C:8]#[N:9])[CH:2]=1.[OH-].[Na+].Br[CH2:14][CH2:15]Cl>C1(C)C=CC=CC=1.O>[C:1]1([CH3:10])[CH:6]=[CH:5][CH:4]=[C:3]([C:7]2([C:8]#[N:9])[CH2:15][CH2:14]2)[CH:2]=1

Participants

6

Reactant 3

HCID 78491-Bromo-2-ChloroethaneHCID 14798Sodium HydroxideHCID 76279m-Methylphenylacetonitrile

Product 1

HCID 200261921-(3-Methylphenyl)cyclopropane-1-carbonitrile

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 1140TolueneSolvent

Conditions

Temperature
60 °C

Procedure

To a stirred solution of 2-(m-tolyl)acetonitrile (4.2 g, 32 mmol) in toluene (15 mL) was added sodium hydroxide (30 mL, 50% w/w in water, 375 mmol), 1-bromo-2-chloroethane (9.3 mL, 112 mmol) and (n-Bu)4Br (0.5 g, 1.55 mmol). The mixture was heated at 60° C. overnight. After cooling to room temperature, the reaction mixture was diluted with water (40 mL) and extracted with EtOAc (3×50 mL). The combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure and purified by silica gel chromatography to obtain the title compound.

Workup

  1. temperatureAfter cooling to room temperature
  2. extractionextracted with EtOAc (3×50 mL)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. custompurified by silica gel chromatography

Sources & evidence

ORD record
ord-6684f7a224ba4610bd72a6910d63fa99
Source dataset
uspto-grants-2015_06
Patent number
US09051265B2

Reaction notes

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