Triethylamine → 1,3-Dioxan-5-yl 5-norbornene-2-carboxylate

HRID 1058152

Reaktionsgleichung

Reaktionsgleichung von HRID 1058152
C1OCOC1CO.C(N(CC)CC)C.C12CC(C=C1)CC2C(Cl)=O.[CH:25]12[CH2:31][CH:28]([CH:29]=[CH:30]1)[CH2:27][CH:26]2[C:32]([O:34][CH2:35][CH:36]1[CH2:40][O:39][CH2:38][O:37]1)=[O:33]>O.C1(C)C=CC=CC=1>[CH:25]12[CH2:31][CH:28]([CH2:29][CH2:30]1)[CH:27]=[C:26]2[C:32]([O:34][CH:35]1[CH2:36][O:37][CH2:38][O:39][CH2:40]1)=[O:33]

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 216181,3-Dioxolane-4-methanolHCID 98233Bicyclo(2.2.1)hept-5-ene-2-carbonyl chlorideHCID 22713062(1,3-Dioxolan-4-yl)methyl 5-norbornene-2-carboxylate

Produkt 1

HCID 699102001,3-Dioxan-5-yl 5-norbornene-2-carboxylateAusbeute 95 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 1140TolueneLösungsmittel

Versuchsvorschrift

To a mixture of 104 g of glycerol formal, 111 g of triethylamine and 300 ml of toluene, 157 g of 5-norbornene-2-carbonyl chloride was added over one hour at 20° C. After 5 hours of stirring, 200 ml of water was added to stop the reaction and the mixture was allowed to separate. The organic layer was washed with water and saturated sodium chloride water, dried over anhydrous sodium sulfate, and concentrated in vacuum. It was further purified by vacuum distillation, obtaining 213 g of a mixture of (1,3-dioxolan-4-yl)methyl 5-norbornene-2-carboxylate and 1,3-dioxan-5-yl 5-norbornene-2-carboxylate (boiling point 111-115° C./530 Pa, yield 95%).

Aufarbeitung

  1. additionwas added over one hour at 20° C
  2. customthe reaction
  3. customto separate
  4. washThe organic layer was washed with water and saturated sodium chloride water
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated in vacuum
  7. distillationIt was further purified by vacuum distillation

Quellen und Nachweise

ORD-Eintrag
ord-f5fa293f397d4965875a84c5d4ade0a5
Quelldatensatz
uspto-grants-2003_02
Patentnummer
US06515150B2

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