Benzil → Hydrobenzoin

HRID 1796957

Reaktionsgleichung

Reaktionsgleichung von HRID 1796957
[C:1]1([C:7]([C:9]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)=[O:10])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[BH4-].[Na+]>CCO.O>[C:11]1([CH:9]([CH:7]([C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[OH:8])[OH:10])[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=1

Komponenten

5

Edukt 2

HCID 8651BenzilHCID 4311764Sodium borohydride

Produkt 1

HCID 95447Hydrobenzoin

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
2.5 °C

Versuchsvorschrift

To a slurry of 97.0 g of benzil in 1 liter of 95% EtOH was added 20 g of sodium borohydride. After stirring 10 minutes, the mixture was diluted with 1 liter of water and the mixture was treated with activated carbon. The mixture was then filtered trough supercel and the filtrate heated and diluted with an additional 2 liters of water until it became slightly cloudy. The mixture was then cooled to 0 to 5° C. and the resulting crytals were collected and washed with cold water. The crystals were then dried in vacuo.

Aufarbeitung

  1. additionthe mixture was treated with activated carbon
  2. filtrationThe mixture was then filtered trough supercel
  3. temperaturethe filtrate heated
  4. additiondiluted with an additional 2 liters of water until it
  5. customthe resulting crytals were collected
  6. washwashed with cold water
  7. customThe crystals were then dried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-7f1fdae056914c53929bc0162e0ff096
Quelldatensatz
uspto-grants-2006_04
Patentnummer
US07034026B2

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