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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040868Generated: November 1, 2026

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

https://huagongshe.com/reaction/2040868

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(Phenylethynyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-eneHCID 57493808—
Reactanttert-Butyl 7-(phenylethynyl)-5-oxa-2,6-diazaspiro[3.4]oct-6-ene-2-carboxylateHCID 57493839—
SolventChloroformHCID 6212—
Product7-(Phenylethynyl)-5-oxa-2,6-diazaspiro[3.4]oct-6-eneHCID 57493840100%

Reaction Steps

The title compound was synthesized following the method reported for Compound 1c, substituting Compound 1b with Compound 38a and running the reaction in chloroform. The crude brownish oily residue was used without further purification in the next reaction step. Yield: 100%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580962B2
Source datasetuspto-grants-2013_11
ORD IDord-f1dacd33753e403ba57171374c9860c1
Source noteuspto-grants-2013_11