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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2256945Generated: October 31, 2026

Ethyl orthoformate → HCID 54487700, compound

https://huagongshe.com/reaction/2256945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthoformateHCID 31214—
Reactant1-[4-Chloro-2-(methanesulfonyl)phenyl]-3-cyclopropylpropane-1,3-dioneHCID 54551365—
SolventAcetic AnhydrideHCID 7918—
ProductHCID 54487700HCID 5448770099.7%

Reaction Steps

A mixture of 1-(4-chloro-2-methylsulphonylphenyl)-3-cyclopropylpropan-1,3-dione (7.1 g) and triethyl orthoformate (6.9 g) in acetic anhydride was stirred and heated at reflux for 2 hours. The mixture was evaporated to dryness, toluene was added and the solution was re-evaporated to give 1-(4-chloro-2-methylsulphonylphenyl)-3-cyclopropyl-2-ethoxymethylenepropan-1,3-dione (8.4 g) as a red gum which was not purified further.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05656573
Source datasetuspto-grants-1997_08
ORD IDord-62e5ab5ca3cc46a5aa61cfb76d91b58b
Source noteuspto-grants-1997_08