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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2040909Generated: October 29, 2026

Diethylcarbamoyl chloride → 2-[2-(3-Chlorophenyl)ethynyl]-N,N-diethyl-4-oxa-3,8-diazaspiro[4.5]dec-2-ene-8-carboxamide

https://huagongshe.com/reaction/2040909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylcarbamoyl chlorideHCID 6916—
ReactantMethyl IsocyanateHCID 12228—
Reactant3-[(3-Chlorophenyl)ethynyl]-1-oxa-2,7-diazaspiro[4.4]non-2-ene-7-carboxamideHCID 56644646—
Reactant3-[(3-Chlorophenyl)ethynyl]-1-oxa-2,7-diazaspiro[4.4]non-2-eneHCID 57493822—
Product2-[2-(3-Chlorophenyl)ethynyl]-N,N-diethyl-4-oxa-3,8-diazaspiro[4.5]dec-2-ene-8-carboxamideHCID 57493795—

Reaction Steps

The title compound was synthesized following the method herein described for the compound of Example 96 but replacing Compound 22c for Compound 27d and N,N-diethyl chloroformamide for methylisocyanate. After the usual work-up procedure the crude was purified by means of automated flash chromatography (Isolera®TM-Biotage; gradient Petroleum Ether-EtOAc from 8:2 to 6:4) giving the title compound. Yield: 47.1%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08580962B2
Source datasetuspto-grants-2013_11
ORD IDord-3a97f3948db04661b105aa580aa34615
Source noteuspto-grants-2013_11