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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1501805Generated: November 4, 2026

Trifluoroacetic acid → 2-(5-Oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]dec-3-en-1-one

https://huagongshe.com/reaction/1501805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 1-oxo-2-(5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]dec-3-ene-8-carboxylateHCID 86709499—
Product2-(5-Oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]dec-3-en-1-oneHCID 86709500—

Reaction Steps

The title compound was prepared from tert-Butyl 1-oxo-2-(5-oxo-2,5-dihydrofuran-3-yl)-2,8-diazaspiro[4.5]dec-3-ene-8-carboxylate using TFA in an analogous fashion to that described for 1-19, Step B. LC/MS: [(M+1)]+=235

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09206198B2
Source datasetuspto-grants-2015_12
ORD IDord-8598fcbb5a7243e8b94a7ce89150bdb7
Source noteuspto-grants-2015_12