Water → aluminum 2-(5H-[1]-benzopyrano[2,3-b]pyridin-7-yl)propionate

HRID 1579455

Reaktionsgleichung

Reaktionsgleichung von HRID 1579455
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]2[CH2:7][C:8]3[CH:14]=[C:13]([CH:15]([CH3:19])[C:16]([OH:18])=[O:17])[CH:12]=[CH:11][C:9]=3[O:10][C:2]=12.CC(C)[O-].[Al+3:24].CC(C)[O-].CC(C)[O-].O>C(O)(C)C>[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]2[CH2:7][C:8]3[CH:14]=[C:13]([CH:15]([CH3:19])[C:16]([O-:18])=[O:17])[CH:12]=[CH:11][C:9]=3[O:10][C:2]=12.[Al+3:24].[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]2[CH2:7][C:8]3[CH:14]=[C:13]([CH:15]([CH3:19])[C:16]([O-:18])=[O:17])[CH:12]=[CH:11][C:9]=3[O:10][C:2]=12.[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]2[CH2:7][C:8]3[CH:14]=[C:13]([CH:15]([CH3:19])[C:16]([O-:18])=[O:17])[CH:12]=[CH:11][C:9]=3[O:10][C:2]=12

Komponenten

5

Edukt 3

HCID 962WaterHCID 4888PranoprofenHCID 11143Aluminum isopropoxide

Produkt 1

HCID 21568497aluminum 2-(5H-[1]-benzopyrano[2,3-b]pyridin-7-yl)propionate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3776IsopropanolLösungsmittel2×

Versuchsvorschrift

2.5 G of 2-(5H-[1]benzopyrano[2,3-b]pyridin-7-yl)propionic acid is dissolved in 80 ml of isopropyl alcohol. A solution of 2.1 g of aluminum isopropoxide in 25 ml of isopropyl alcohol is added dropwise to the solution with stirring, white crystals being immediately yielded. After refluxing the mixture for 1 hour, 3 ml of water is added, and then the whole mixture is further refluxed for 1 hour. After cooling, the crystals are filtered off, washed with isopropyl alcohol, and dried to give aluminum 2-(5H-[1]-benzopyrano[2,3-b]pyridin-7-yl)propionate as white crystals melting at above 250°C.

Aufarbeitung

  1. customwhite crystals being immediately yielded
  2. temperatureAfter refluxing the mixture for 1 hour
  3. temperaturethe whole mixture is further refluxed for 1 hour
  4. temperatureAfter cooling
  5. filtrationthe crystals are filtered off
  6. washwashed with isopropyl alcohol
  7. customdried

Quellen und Nachweise

ORD-Eintrag
ord-046c44be7a3645999781925f225f62a5
Quelldatensatz
uspto-grants-1976_01
Patentnummer
US03931205

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