2,4-Imidazolidinedione, 5,5-bis(2-(phenylmethoxy)phenyl)- → 2,4-Imidazolidinedione, 5,5-bis(2-hydroxyphenyl)-
Reaktionsgleichung
C([O:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[C:15]1([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[O:28]CC2C=CC=CC=2)[NH:19][C:18](=[O:20])[NH:17][C:16]1=[O:21])C1C=CC=CC=1>[C].[Pd].O1CCOCC1>[OH:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[C:15]1([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[OH:28])[NH:19][C:18](=[O:20])[NH:17][C:16]1=[O:21]Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- 80 °C
Versuchsvorschrift
11.0 Grams of 5,5-bis(2-benzyloxyphenyl)hydantoin (Example 12) were reduced in 150 ml. of dioxane in the presence of 2 g of palladium-carbon catalyst in an autoclave under a hydrogen pressure of 10 Kg/cm2 at room temperature. After completion of the hydrogen absorption, the whole was heated at 80° C. under a hydrogen pressure of 10 Kg/cm2 for about 5 hours. The reaction liquid was subjected to filtration to remove the catalyst and concentrated under reduced pressure and the resulting precipitates were filtered out. The product was recrystallized from a mixture of acetone-chloroform to obtain 3.4 g of 5,5-bis(2-hydroxyphenyl)hydantoin in the form of white crystals.
Aufarbeitung
- customat room temperature
- customAfter completion of the hydrogen absorption
- customThe reaction liquid
- filtrationwas subjected to filtration
- customto remove the catalyst
- concentrationconcentrated under reduced pressure
- customthe resulting precipitates
- filtrationwere filtered out
- customThe product was recrystallized from a mixture of acetone-chloroform
Quellen und Nachweise
- ORD-Eintrag
- ord-8934dc9f3cb74bf8bd79a9af0a003ed8
- Quelldatensatz
- uspto-grants-1981_07
- Patentnummer
- US04281009
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