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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040880Generated: November 1, 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)benzonitrile

https://huagongshe.com/reaction/2040880

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(Phenylethynyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-eneHCID 57493808—
Reactanttert-Butyl 7-[(3-cyanophenyl)ethynyl]-5-oxa-2,6-diazaspiro[3.4]oct-6-ene-2-carboxylateHCID 57493852—
Product3-(5-Oxa-2,6-diazaspiro[3.4]oct-6-en-7-ylethynyl)benzonitrileHCID 5749385390.4%

Reaction Steps

The title compound was synthesized following the method reported for the Compound 1c, substituting Compound 1b with Compound 81a. 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-840080b284ac4c1a97e9c3aaf34e5ba8
Source noteuspto-grants-2013_11