Ethylene Glycol → HCID 18615483, Verbindung

HRID 1265231

Reaktionsgleichung

Reaktionsgleichung von HRID 1265231
[CH2:1]([Sn:9](=[O:18])[CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH3:17])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8].[CH2:19](O)[CH2:20][OH:21]>C1(C)C=CC=CC=1>[CH2:1]([Sn:9]1([CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH3:17])[O:21][CH2:20][CH2:19][O:18]1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8]

Komponenten

4

Edukt 2

HCID 174Ethylene GlycolHCID 93563Dioctyltin oxide

Produkt 1

HCID 18615483HCID 18615483, VerbindungAusbeute 97,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

2.0005 g (5.54 mol) of dioctyltin oxide and 0.344 g (5.54 mmol) of ethylene glycol were introduced into a 100 ml reaction vessel equipped with a Dean-Stark device, and the atmosphere in the reaction vessel was replaced by argon. 70 ml of toluene was added, and the mixture was dehydrated by azeotropic distillation at 135° C. and stirred for 25.5 hours during which it became an uniform solution. After left and cooled to 60° C., the toluene was distilled off under reduced pressure. The resulting white solids were dried at 60° C. for 5 hours in vaccuo to give 1,1-dioctylstanna-2,5-dioxacyclopentane, 2.19 g (97.6% yield).

Aufarbeitung

  1. customequipped with a Dean-Stark device
  2. distillationthe mixture was dehydrated by azeotropic distillation at 135° C.
  3. waitAfter left
  4. distillationthe toluene was distilled off under reduced pressure
  5. customThe resulting white solids were dried at 60° C. for 5 hours in vaccuo

Quellen und Nachweise

ORD-Eintrag
ord-0eecc3af0fff499fb71b45447a2ebc33
Quelldatensatz
uspto-grants-2003_04
Patentnummer
US06545112B2

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