2,5-bis(4-methylbenzoyl)terephthalic Acid → 2,5-Bis(4-methylbenzyl)terephthalic acid

HRID 983749Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 983749
[CH3:1][C:2]1[CH:30]=[CH:29][C:5]([C:6]([C:8]2[CH:16]=[C:15]([C:17]([OH:19])=[O:18])[C:14]([C:20](=O)[C:21]3[CH:26]=[CH:25][C:24]([CH3:27])=[CH:23][CH:22]=3)=[CH:13][C:9]=2[C:10]([OH:12])=[O:11])=O)=[CH:4][CH:3]=1.[H][H]>[Pd].C(O)(=O)C>[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][C:8]2[CH:16]=[C:15]([C:17]([OH:19])=[O:18])[C:14]([CH2:20][C:21]3[CH:22]=[CH:23][C:24]([CH3:27])=[CH:25][CH:26]=3)=[CH:13][C:9]=2[C:10]([OH:12])=[O:11])=[CH:29][CH:30]=1

Komponenten

5

Edukt 2

HCID 112581482,5-bis(4-methylbenzoyl)terephthalic AcidHCID 178418361HCID 178418361, Verbindung

Produkt 1

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

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 176Acetic AcidLösungsmittel

Versuchsvorschrift

A mixture of 30.0 grams of 2,5-bis(4-methylbenzoyl)terephthalic acid, 500 mL of acetic acid, and 3 grams of 5% palladium on activated carbon (as a catalyst) was heated to 64° C. for 17 hours in an atmosphere of hydrogen at 270 kPa. The mixture was filtered to remove the catalyst and the product. The catalyst and the product were slurried in 500 mL of tetrahhydrofuran and filtered through Celite™ diatomaceous earth filter agent. The resulting filtrate was concentrated in vacuo. The resulting wet solid was slurried in ethyl acetate and collected by filtration and dried to give 2,5-bis(4-methylbenzyl)terephthalic acid.

Aufarbeitung

  1. filtrationThe mixture was filtered
  2. customto remove the catalyst
  3. filtrationfiltered through Celite™ diatomaceous earth
  4. filtrationfilter agent
  5. concentrationThe resulting filtrate was concentrated in vacuo
  6. filtrationcollected by filtration
  7. customdried

Quellen und Nachweise

ORD-Eintrag
ord-b49a1a9b72a546d5ba4f5d337d526bb9
Quelldatensatz
uspto-grants-2005_03
Patentnummer
US06864396B2

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