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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2047082Generated: November 1, 2026

Ethyl 3-oxocyclopentanecarboxylate → Ethyl 1,4-dioxaspiro[4.4]nonane-7-carboxylate

https://huagongshe.com/reaction/2047082

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 3-oxocyclopentanecarboxylateHCID 223136—
ReactantEthyl 4-oxocyclohexanecarboxylateHCID 317638—
ReactantEthyl 1,4-dioxaspiro(4.5)decane-8-carboxylateHCID 10488810—
ProductEthyl 1,4-dioxaspiro[4.4]nonane-7-carboxylateHCID 245433—

Reaction Steps

Ethyl 1,4-dioxaspiro[4.4]nonane-7-carboxylate was synthesized in a manner similar to the synthesis of ethyl 1,4-dioxaspiro[4.5]decane-8-carboxylate, but with ethyl 3-oxocyclopentanecarboxylate substituted for ethyl 4-oxocyclohexanecarboxylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08591943B2
Source datasetuspto-grants-2013_11
ORD IDord-a8de9d7074194e77bd721e8337559542
Source noteuspto-grants-2013_11