2-(Carboxymethyl)-4-chlorobenzoic acid → 156590-23-7

HRID 2398560Notes

Reaction equation

HRID 2398560 reaction equation
[Cl:1][C:2]1[CH:11]=[C:6]([CH2:7][C:8]([OH:10])=O)[C:5]([C:12]([OH:14])=[O:13])=[CH:4][CH:3]=1>C(OC(=O)C)(=O)C>[Cl:1][C:2]1[CH:11]=[C:6]2[CH2:7][C:8]([O:14][C:12](=[O:13])[C:5]2=[CH:4][CH:3]=1)=[O:10]

Participants

3

Reactant 1

HCID 3340352-(Carboxymethyl)-4-chlorobenzoic acid

Product 1

HCID 21782485156590-23-7

Reagents, catalysts & solvents 1

HCID 7918Acetic AnhydrideSolvent

Procedure

The starting material is prepared as follows. The mixture of 6.2 g of 5-chlorohomophthalic acid and 70 ml of acetic anhydride is refluxed for 1/2 hour and evaporated. The residue is washed with chloroform, carbon tetrachloride and dryed to yield the 5-chlorohomophthalic anhydride melting at 170°-173°.

Workup

  1. customThe starting material is prepared
  2. temperatureis refluxed for 1/2 hour
  3. customevaporated
  4. washThe residue is washed with chloroform, carbon tetrachloride

Sources & evidence

ORD record
ord-be8343e6eb8142cba46df08941cf1afc
Source dataset
uspto-grants-1977_05
Patent number
US04025505

Reaction notes

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