Formaldehyde → 3-Phenylsalicylic acid toluene-formaldehyde

HRID 1086985

Reaktionsgleichung

Reaktionsgleichung von HRID 1086985
[C:1]1([C:7]2[CH:15]=[CH:14][CH:13]=[C:9]([C:10]([OH:12])=[O:11])[C:8]=2[OH:16])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:17]1([CH3:23])[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.[CH2:24]=[O:25].S(=O)(=O)(O)O>C(O)(=O)C>[C:1]1([C:7]2[CH:15]=[CH:14][CH:13]=[C:9]([C:10]([OH:12])=[O:11])[C:8]=2[OH:16])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1.[C:17]1([CH3:23])[C:18]([CH:24]=[O:25])=[CH:19][CH:20]=[CH:21][CH:22]=1

Komponenten

6

Edukt 4

HCID 712FormaldehydeHCID 1118Sulfuric AcidHCID 1140TolueneHCID 93483-Phenylsalicylic acid

Produkt 1

HCID 867449223-Phenylsalicylic acid toluene-formaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel

Versuchsvorschrift

To a mixture of 21.4 parts of 3-phenylsalicylic acid, 18.4 parts of toluene, 3.8 parts of 87% paraformaldehyde and 30 parts of acetic acid was added 2.0 parts of 95% sulfuric acid (catalyst). After being heated under reflux for 4 hours, the reaction mixture was washed with water, and unreacted toluene and water were removed by vacuum distillation to give 32 parts of 3-phenylsalicylic acid-toluene-formaldehyde co-condensation product. 10 parts of the co-condensation product was converted into its zinc salt in a similar manner as in Synthesis Example 4. There was obtained 10.8 parts of zinc salt of 3-phenylsalicylic acid-toluene-formaldehyde co-condensation product.

Aufarbeitung

  1. temperatureAfter being heated
  2. temperatureunder reflux for 4 hours
  3. washthe reaction mixture was washed with water, and unreacted toluene and water
  4. customwere removed by vacuum distillation

Quellen und Nachweise

ORD-Eintrag
ord-ac8f271fb3bc40b5bd147aefe3745281
Quelldatensatz
uspto-grants-1991_07
Patentnummer
US05034370

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