Triphenylphosphine → HCID 59407857, compound

HRID 1093395Notes

Reaction equation

HRID 1093395 reaction equation
[CH3:1][C:2]1[S:6][C:5]([CH2:7][CH2:8][CH2:9]O)=[CH:4][CH:3]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Br:30]N1C(=O)CCC1=O>C(Cl)Cl>[Br:30][CH2:9][CH2:8][CH2:7][C:5]1[S:6][C:2]([CH3:1])=[CH:3][CH:4]=1

Participants

5

Reactant 3

HCID 11776TriphenylphosphineHCID 67184N-bromobutanimideHCID 12862889HCID 12862889, compound

Product 1

HCID 59407857HCID 59407857, compoundYield 37.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Compound 48-2 (1.23 g) was dissolved in methylene chloride (30 ml), triphenylphosphine (2.27 g) and N-bromosuccinimide (1.54 g) were added under ice-cooling, and the mixture was stirred under ice-cooling for 1 hr, and at room temperature for 2 hr. The reaction mixture was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. Diethyl ether (50 ml) was added, and the precipitated triphenylphosphine oxide was filtered off. The concentrate of the filtrate was purified by silica gel column chromatography (hexane alone) to give the object product (650 mg) as a yellow oil.

Workup

  1. temperaturecooling
  2. temperaturecooling for 1 hr
  3. washThe reaction mixture was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. additionDiethyl ether (50 ml) was added
  7. filtrationthe precipitated triphenylphosphine oxide was filtered off
  8. concentrationThe concentrate of the filtrate
  9. customwas purified by silica gel column chromatography (hexane alone)

Sources & evidence

ORD record
ord-1b5da41bf21a446f93d4e4813f0c44a4
Source dataset
uspto-grants-2012_03
Patent number
US08129361B2

Reaction notes

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