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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040879Generated: October 31, 2026

3-(Phenylethynyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-ene → 3-(5-Oxa-2,6-diazaspiro[3.4]oct-6-en-7-ylethynyl)phenol

https://huagongshe.com/reaction/2040879

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(Phenylethynyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-eneHCID 57493808—
ReactantTert-butyl 7-[(3-hydroxyphenyl)ethynyl]-5-oxa-2,6-diazaspiro[3,4]oct-6-ene-2-carboxylateHCID 66603439—
Product3-(5-Oxa-2,6-diazaspiro[3.4]oct-6-en-7-ylethynyl)phenolHCID 5749385190.4%

Reaction Steps

The title compound was synthesized following the method reported for the Compound 1c, substituting Compound 1b with Compound 80b. The crude residue was used without further purification in the next reaction. Yield: 90.4%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580962B2
Source datasetuspto-grants-2013_11
ORD IDord-5755788d8f87413ea0bc60d8a8253b44
Source noteuspto-grants-2013_11