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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2286304Generated: October 25, 2026

3,5-Dimethylcyclohex-2-en-1-one → 1,3-Dimethyl-5-oxocyclohexanephosphonic acid

https://huagongshe.com/reaction/2286304

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,5-Dimethylcyclohex-2-en-1-oneHCID 14291—
ReactantDiethylphosphiteHCID 3780918—
SolventHydrochloric AcidHCID 313—
Product1,3-Dimethyl-5-oxocyclohexanephosphonic acidHCID 23462674—
ProductDiethyl 1,3-dimethyl-5-oxocyclohexanephosphonateHCID 23462678—

Reaction Steps

Diethyl 1,3-dimethyl-5-oxocyclohexanephosphonate (B. pt. 120°/0.1 mm) was prepared by the base catalysed addition of diethylphosphite to 3,5-dimethyl-2-cyclohexen-1-one. Hydrolysis of the ester in concentrated HCl gave 1,3-dimethyl-5-oxocyclohexanephosphonic acid as a viscous oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04265769
Source datasetuspto-grants-1981_05
ORD IDord-069ca0d613fc4c73b63845d4b9818048
Source noteuspto-grants-1981_05