Sulfuric Acid → Quinacridone

HRID 399186

Reaktionsgleichung

Reaktionsgleichung von HRID 399186
[NH:1]([C:8]1[CH:16]=[C:15]([C:17](O)=[O:18])[C:14]([NH:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[CH:13][C:9]=1[C:10](O)=[O:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.S(=O)(=O)(O)O>O>[CH:24]1[CH:25]=[C:26]2[C:17]([C:15]3[C:14]([NH:20][C:21]2=[CH:22][CH:23]=1)=[CH:13][C:9]1[C:10]([C:7]2[C:2]([NH:1][C:8]=1[CH:16]=3)=[CH:3][CH:4]=[CH:5][CH:6]=2)=[O:11])=[O:18]

Komponenten

4

Edukt 2

HCID 1118Sulfuric AcidHCID 823512,5-Dianilinoterephthalic acid

Produkt 1

HCID 13976Quinacridone

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Reaktionsbedingungen

Temperatur
160 °C

Versuchsvorschrift

A 200-ml flask was charged with 6.96 parts of the 2,5-dianilinoterephthalic acid obtained in Example 29 and 70 parts of sulfuric acid having a concentration of 98%, and while the mixture was stirred, the mixture was maintained at 160° C. for 5 hours. Then, the mixture was cooled to 80° C. or lower, and 50 parts of water was gradually added over 4 hours. Then, the mixture was poured into 500 parts of ice-containing water at one stroke, and the mixture was filtered, washed with water and dried to give 5.83 parts (93.5% of the theoretical yield) of an unsubstituted quinacridone.

Aufarbeitung

  1. temperatureThen, the mixture was cooled to 80° C.
  2. additionThen, the mixture was poured into 500 parts of ice-
  3. filtrationthe mixture was filtered
  4. washwashed with water
  5. customdried
  6. customto give 5.83 parts (93.5% of the

Quellen und Nachweise

ORD-Eintrag
ord-f930a0f4fb1d4cf6bf457aa7ab2c532a
Quelldatensatz
uspto-grants-1998_10
Patentnummer
US05817817

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