Hydrochloric Acid → 5-Chloro-2-(methylthio)benzonitrile

HRID 1015726Notes

Reaction equation

HRID 1015726 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5](F)=[C:6]([CH:9]=1)[C:7]#[N:8].[CH3:11][S-:12].[Na+].Cl>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([S:12][CH3:11])=[C:6]([CH:9]=1)[C:7]#[N:8]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 936535-Chloro-2-fluorobenzonitrileHCID 4378561Sodium methanethiolate

Product 1

HCID 598456935-Chloro-2-(methylthio)benzonitrileYield 96.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

(Step 1) A mixture of 5-chloro-2-fluorobenzonitrile (5.0 g) and sodium methanethiolate (2.48 g) was stirred in N,N-dimethylformamide (20 ml) at 60° C. for 1 hr. The reaction solution was treated with 1N hydrochloric acid, and extracted with ethyl acetate. The extract was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure to give 5-chloro-2-(methylsulfanyl)benzonitrile (5.7 g).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure

Sources & evidence

ORD record
ord-e853304916f049da8f92526745954b2c
Source dataset
uspto-grants-2011_07
Patent number
US07985862B2

Reaction notes

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