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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 67280Generated: October 26, 2026

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

https://huagongshe.com/reaction/67280

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Dichloromethyl-6,6-dimethyl-3-oxabicyclo[3.1.0]hexan-2-oneHCID 20492984—
ReactantPotassium tert-butoxideHCID 23665647—
SolventDimethyl SulfoxideHCID 679—
SolventWaterHCID 962—
ProductCis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acidHCID 41507—

Reaction Steps

Potassium tertiary butoxide (0.45 mol) 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 CDCl3. NMR analysis showed a virtually quantitative yield of the desired cis acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04346038
Source datasetuspto-grants-1982_08
ORD IDord-78c9fa680c9548668ca5189c8a5276c2
Source noteuspto-grants-1982_08