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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2163169Generated: October 25, 2026

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → 4-((tert-Butyl(dimethyl)silyl)oxy)cyclopent-2-en-1-one

https://huagongshe.com/reaction/2163169

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3-Dichloro-5,6-dicyano-1,4-benzoquinoneHCID 6775—
Reactant2-Cyclopenten-1-ol, 4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-HCID 12763355—
Solvent1,4-DioxaneHCID 31275—
Product4-((tert-Butyl(dimethyl)silyl)oxy)cyclopent-2-en-1-oneHCID 4131699305.9%

Reaction Conditions

Temperature55 °C

Reaction Steps

1.13 grams of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) was dissolved in 15 milliliters of dioxane, to which was then added 660 milligrams of crude 4-t-butyldimethylsiloxycyclopent-2-en-1-ol (purity 74%), after which the mixture was heated at 55° C. for 16 hours with stirring. After completion of the reaction, the precipitate separating out was filtered off. When the filtrate was concentrated under reduced pressure, 2.0 grams of a crude product was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04132726
Source datasetuspto-grants-1979_01
ORD IDord-7e03292ba69b400f98995913705f1951
Source noteuspto-grants-1979_01