Hydrochloric Acid → Cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid

HRID 434554

Reaktionsgleichung

Reaktionsgleichung von HRID 434554
CC(C)([O-])C.[K+].[Cl:7][CH:8]([Cl:18])[CH:9]1[CH:14]2[CH:12]([C:13]2([CH3:16])[CH3:15])[C:11](=[O:17])[O:10]1.Cl>CS(C)=O.O>[Cl:7][C:8]([Cl:18])=[CH:9][C@H:14]1[C:13]([CH3:16])([CH3:15])[C@H:12]1[C:11]([OH:17])=[O:10]

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 204929844-Dichloromethyl-6,6-dimethyl-3-oxabicyclo[3.1.0]hexan-2-oneHCID 23665647Potassium tert-butoxide

Produkt 1

HCID 41507Cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 679Dimethyl SulfoxideLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

Potassium tertiary butoxide (0.45 mmol) was added to a solution of 4-dichloromethyl-6,6-dimethyl-3-oxabicyclo[3.1.0]hexan-2-one (0.16 mmol) in dry dimethylsulphoxide (0.4 ml) and stirred at room temperature for 1/2 hour. The solution was then diluted with water, acidified with concentrated hydrochloric acid and extracted with CDCl3. NMR analysis showed a virtually quantitative yield of the desired cis acid.

Aufarbeitung

  1. extractionextracted with CDCl3

Quellen und Nachweise

ORD-Eintrag
ord-b102740ead354a6093c5147df0213cf9
Quelldatensatz
uspto-grants-1983_08
Patentnummer
US04398032

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