Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040869Generated: November 1, 2026

3-(Phenylethynyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-ene → 3-(1-Oxa-2,7-diazaspiro[4.4]non-2-en-3-ylethynyl)phenol

https://huagongshe.com/reaction/2040869

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(Phenylethynyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-eneHCID 57493808—
Reactanttert-Butyl 3-[(3-hydroxyphenyl)ethynyl]-1-oxa-2,7-diazaspiro[4.4]non-2-ene-7-carboxylateHCID 57493841—
SolventChloroformHCID 6212—
Product3-(1-Oxa-2,7-diazaspiro[4.4]non-2-en-3-ylethynyl)phenolHCID 5749384284.8%

Reaction Steps

The title compound was synthesized following the method reported for the Compound 1c, substituting Compound 1b with Compound 39a and running the reaction in chloroform. The crude brownish oily residue was used without further purification in the next reaction step. Yield: 84.8%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580962B2
Source datasetuspto-grants-2013_11
ORD IDord-1499d49a33e4479195674da6c1a2678c
Source noteuspto-grants-2013_11