3,5-Dichlorobenzoic acid → 3,5-Dichlorobenzoyl chloride

HRID 1414612Notes

Reaction equation

HRID 1414612 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([Cl:11])[CH:10]=1)[C:5](O)=[O:6].S(Cl)([Cl:14])=O>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([Cl:11])[CH:10]=1)[C:5]([Cl:14])=[O:6]

Participants

4

Reactant 2

HCID 58113,5-Dichlorobenzoic acidHCID 24386Thionyl Chloride

Product 1

HCID 761913,5-Dichlorobenzoyl chloride

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 13.4 g. (0.07 mol.) of 3,5-dichlorobenzoic acid and 10.7 g. (0.09 mol.) of thionyl chloride in 60 ml. of methylene chloride was refluxed on a steam bath for two hours. Concentration under reduced pressure and distillation of the residue gave 3,5-dichlorobenzoyl chloride.

Workup

  1. concentrationConcentration
  2. distillationunder reduced pressure and distillation of the residue

Sources & evidence

ORD record
ord-f0b487d6c6c44baca5f48b3070675a80
Source dataset
uspto-grants-1977_01
Patent number
US04001426

Reaction notes

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