Acrylonitrile → 3-[(3-Bromophenyl)thio]propionitrile

HRID 1683749Notes

Reaction equation

HRID 1683749 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([SH:8])[CH:5]=[CH:6][CH:7]=1.[C:9](#[N:12])[CH:10]=[CH2:11]>[OH-].[Na+]>[Br:1][C:2]1[CH:3]=[C:4]([S:8][CH2:11][CH2:10][C:9]#[N:12])[CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 7855AcrylonitrileHCID 80597m-Bromobenzenethiol

Product 1

HCID 186867423-[(3-Bromophenyl)thio]propionitrileYield 93.7%

Reagents, catalysts & solvents 1

HCID 14798Sodium HydroxideSolvent

Procedure

3-Bromothiophenol (10 g, 52.9 mmmol) was dissolved in acrylonitrile (11.28 g, 213 mmol). Triton B (1 mL) was added, at which time the reaction mixture became exothermic and began to reflux without added heat. The mixture was allowed to cool to room temperature, poured into cold aqueous sodium hydroxide (2%; 200 mL), and extracted with diethyl ether. The organic layer was dried, filtered and evaporated to provide 12 g (93%) of 3-[(3-bromophenyl)thio]propionitrile as a tan oil; 1H NMR (CDCl3) δ 7.54 (s, 1H), 7.42 (d, 1H), 7.32 (d, 1H), 7.25-7.15 (m, 2H), 3.15 (t, 2H), 2.62 (t, 2H); Mass spectrum m/z 261, 259 (M+NH4).

Workup

  1. additionTriton B (1 mL) was added, at which time the reaction mixture
  2. temperatureto reflux
  3. additionwithout added
  4. temperatureheat
  5. extractionextracted with diethyl ether
  6. customThe organic layer was dried
  7. filtrationfiltered
  8. customevaporated

Sources & evidence

ORD record
ord-8a606e206ad24afe8308f7c420b5f4ee
Source dataset
uspto-grants-1997_06
Patent number
US05639759

Reaction notes

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