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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1080444Generated: November 4, 2026

2,7-dioxaspiro[4.4]nonane-1,6-dione → Carbon Dioxide

https://huagongshe.com/reaction/1080444

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,7-dioxaspiro[4.4]nonane-1,6-dioneHCID 230907—
SolventWaterHCID 962—
ProductCarbon DioxideHCID 280—
ProductOxane-4-carboxylic acidHCID 219302—

Reaction Steps

The 2,7-dioxaspiro[4.4]nonane-1,6-dione II can preferably be reacted in molten (m.p.: 108° to 109° C.) or dissolved form, together with the alcohol III or water and, if appropriate, an inert gas such as nitrogen, carbon dioxide or argon, to give tetrahydropyran-4-carboxylic acid and its esters I.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05580994
Source datasetuspto-grants-1996_12
ORD IDord-41cf9cc62f5449d29ff108d95961b3db
Source noteuspto-grants-1996_12