Sulfuric Acid → chrysanthemic acid d-trans-form

HRID 267573

Reaktionsgleichung

Reaktionsgleichung von HRID 267573
CC[O:3][C:4]([CH:6]1[C:8]([CH3:10])([CH3:9])[CH:7]1[CH:11]=[C:12]([CH3:14])[CH3:13])=[O:5].S(=O)(=O)(O)O>>[CH3:13][C:12]([CH3:14])=[CH:11][C@H:7]1[C:8]([CH3:9])([CH3:10])[C@@H:6]1[C:4]([OH:5])=[O:3]

Komponenten

3

Edukt 2

HCID 1118Sulfuric AcidHCID 7334Ethyl chrysanthemate

Produkt 1

HCID 16747chrysanthemic acid d-trans-formAusbeute 80 %

Versuchsvorschrift

The water layer was made acidic with sulfuric acid and extracted with toluene (20 g) two times. The toluene layer was washed and distilled under reduced pressure to give trans-chrysanthemic acid (4.2 g; trans-isomer, 80.0 %). B.P. 122° to 130°C/3.3 mmHg.

Aufarbeitung

  1. extractionextracted with toluene (20 g) two times
  2. washThe toluene layer was washed
  3. distillationdistilled under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-c809d282989e4a5fb9afded6da017da3
Quelldatensatz
uspto-grants-1976_03
Patentnummer
US03943167

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