Acetic Acid → Piperonylidene acetone

HRID 464759Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 464759
[CH:1]1[C:6]([CH:7]=O)=[CH:5][C:4]2[O:9][CH2:10][O:11][C:3]=2[CH:2]=1.[OH-].[Na+].O.C(O)(=O)C.[CH3:19][C:20]([CH3:22])=[O:21]>>[CH3:19][C:20](/[CH:22]=[CH:7]/[C:6]1[CH:1]=[CH:2][C:3]2[O:11][CH2:10][O:9][C:4]=2[CH:5]=1)=[O:21]

Komponenten

6

Versuchsvorschrift

A solution of 100 g piperonal in 900 ml acetone was stirred at room temperature with 15 ml of 10% aqueous sodium hydroxide and 30 ml of water. After 3 hours 5 ml of acetic acid was added and the reaction mixture was evaporated. The residue was recrystallized from methanol and dried in vacuo to yield 60 g of piperonalacetone, m.p. 104°-105° C. (EtoAc).

Aufarbeitung

  1. customthe reaction mixture was evaporated
  2. customThe residue was recrystallized from methanol
  3. customdried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-b25eb18c5013421397b6e341a4b04438
Quelldatensatz
uspto-grants-1985_10
Patentnummer
US04548951

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