Trifluoromethanesulfonic acid → 7,14-Dihydro-3,10-dimethylpentacene-5,12-dione

HRID 488949Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 488949
CC1C=CC(C[C:7]2[CH:15]=[C:14]([C:16](O)=[O:17])[C:13]([CH2:19][C:20]3[CH:25]=[CH:24][C:23]([CH3:26])=[CH:22][CH:21]=3)=[CH:12][C:8]=2[C:9]([OH:11])=O)=CC=1.FC(F)(F)S(O)(=O)=O>FC(F)(F)C(O)=O>[CH3:9][C:8]1[CH:7]=[CH:15][C:14]2[CH2:16][C:7]3[C:8]([C:9](=[O:11])[C:13]=2[CH:12]=1)=[CH:12][C:13]1[CH2:19][C:20]2[C:21](=[CH:22][C:23]([CH3:26])=[CH:24][CH:25]=2)[C:16](=[O:17])[C:14]=1[CH:15]=3

Komponenten

4

Edukt 2

HCID 62406Trifluoromethanesulfonic acidHCID 117491572,5-Bis(4-methylbenzyl)terephthalic acid

Produkt 1

HCID 114505987,14-Dihydro-3,10-dimethylpentacene-5,12-dione

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6422Trifluoroacetic acidLösungsmittel

Versuchsvorschrift

To a mixture of 12.7 grams of 2,5-bis(4-methylbenzyl)terephthalic acid and 90 mL of trifluoroacetic acid was added 81.6 grams of trifluoromethanesulfonic acid. The reaction was stirred 22 hours at room temperature. The mixture was poured over 500 grams of ice. The resulting solid precipitate was collected by filtration, washed with 750 mL of saturated aqueous sodium bicarbonate and 1 L of water until the filtrate was neutral to pH paper. The solid was washed with heptane and dried to give 7,14-dihydro-3,10-dimethylpentacene-5,12-dione.

Aufarbeitung

  1. filtrationThe resulting solid precipitate was collected by filtration
  2. washwashed with 750 mL of saturated aqueous sodium bicarbonate and 1 L of water until the filtrate
  3. washThe solid was washed with heptane
  4. customdried

Quellen und Nachweise

ORD-Eintrag
ord-85ff14b1fed34b5aa07a93b93fb8d34b
Quelldatensatz
uspto-grants-2005_12
Patentnummer
US06974877B2

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