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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 848430Generated: October 28, 2026

Sodium Carbonate → 4,7,7-Trimethylbicyclo[4.1.0]hept-4-en-3-one

https://huagongshe.com/reaction/848430

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantNitrosyl chlorideHCID 17601—
Reactant3-CareneHCID 26049—
ReactantHCID 571772HCID 571772—
ReactantSodium BisulfiteHCID 23665763—
SolventEthanolHCID 702—
Product4,7,7-Trimethylbicyclo[4.1.0]hept-4-en-3-oneHCID 12652913—

Reaction Steps

The starting material 2-caren-4-one can be produced from commercially available, optically pure (+)-3-carene. The (+)-3-carene is treated with nitrosyl chloride followed by the addition of powdered sodium carbonate. The resulting 2-caren-4-one oxime is then treated with sodium bisulfite in aqueous ethanol to yield 2-caren-4-one, the desired starting product for the inventive process.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04296038
Source datasetuspto-grants-1981_10
ORD IDord-31bd34f315bc43ddb229dd3ac6dd9fc2
Source noteuspto-grants-1981_10