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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 655101Generated: October 29, 2026

Phosphoric Acid → HCID 56960321, compound

https://huagongshe.com/reaction/655101

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphoric AcidHCID 1004—
Reactant4-Ethenyl-1,4-dimethylcyclohex-1-eneHCID 102683—
SolventTolueneHCID 1140—
ProductHCID 56960321HCID 56960321—

Reaction Steps

Phosphoric acid (H3PO4, 145 g, 1.48 mol) was added to a solution of 1,4-dimethyl-4-vinyl-cyclohexene (403 g, 2.96 mol, commercially available from Evonik Industries) in toluene (500 mL) and refluxed for 6 hours. The reaction mixture was subsequently quenched with a solution of sodium hydroxide (NaOH). The organic layer was separated, dried over sodium sulfate (Na2SO4), and fractionated to provide 2,5-dimethyl-bicyclo[3.2.1]oct-2-ene (280 g) having a boiling point of 87° C. at a pressure of 27 mmHg

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071529B1
Source datasetuspto-grants-2011_12
ORD IDord-0ac3c5a76c6847c08842e52140f5c964
Source noteuspto-grants-2011_12