Acetonitrile → Methyl 4-(2,3,6-trichloro-4,5-dicyano-phenoxy)benzoate

HRID 525840

Reaction equation

HRID 525840 reaction equation
[Cl:1][C:2]1[C:3](Cl)=[C:4]([Cl:13])[C:5]([Cl:12])=[C:6]([C:10]#[N:11])[C:7]=1[C:8]#[N:9].[OH:15][C:16]1[CH:25]=[CH:24][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:18][CH:17]=1.C(=O)([O-])[O-].[K+].[K+].C(#N)C>C(OCC)(=O)C>[Cl:13][C:4]1[C:5]([Cl:12])=[C:6]([C:10]#[N:11])[C:7]([C:8]#[N:9])=[C:2]([Cl:1])[C:3]=1[O:15][C:16]1[CH:17]=[CH:18][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:24][CH:25]=1

Participants

6

Reactant 4

HCID 6342AcetonitrileHCID 7456MethylparabenHCID 11430Potassium CarbonateHCID 160571,2-Benzenedicarbonitrile, 3,4,5,6-tetrachloro-

Product 1

HCID 117902339Methyl 4-(2,3,6-trichloro-4,5-dicyano-phenoxy)benzoate

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

To a 250 mL flask, 4.8 g of tetrachlorophthalonitrile, 3.98 g of methyl 4-hydroxybenzoate, 5 g of potassium carbonate (K2CO3), and 55 mL of acetonitrile are added, followed by heating for 12 hours while refluxing. After completion of the reaction, 30 mL of ethyl acetate is added and filtered to remove the solvent. To the obtained solid, a suitable amount of dichloromethane is added to dissolve the solid, followed by adding hexane for crystallization. The obtained solid is filtered and dried under vacuum to obtain a compound, methyl 4-(2,3,6-trichloro-4,5-dicyano-phenoxy)benzoate. The first step reaction may be represented by Reaction Scheme 1:

Workup

  1. temperatureby heating for 12 hours
  2. temperaturewhile refluxing
  3. additionis added
  4. filtrationfiltered
  5. customto remove the solvent
  6. additionTo the obtained solid, a suitable amount of dichloromethane is added
  7. dissolutionto dissolve the solid
  8. additionby adding hexane
  9. customfor crystallization
  10. filtrationThe obtained solid is filtered
  11. customdried under vacuum

Sources & evidence

ORD record
ord-91f652bde2d144b8bcc88d059b1c6ca6
Source dataset
uspto-grants-2016_05
Patent number
US09341743B2

Linked notes

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