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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2272868Generated: November 3, 2026

Hydrochloric Acid → 8-Formyl-1,4-dioxa-8-azaspiro[4.5]decane-7-carboxylic acid

https://huagongshe.com/reaction/2272868

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantMethyl 8-formyl-1,4-dioxa-8-azaspiro[4.5]decane-7-carboxylateHCID 117874362—
Solvent1,4-DioxaneHCID 31275—
Product8-Formyl-1,4-dioxa-8-azaspiro[4.5]decane-7-carboxylic acidHCID 117874276—

Reaction Steps

15.25 g of the compound obtained in Step A (62.7 mmol) are dissolved in 160 ml of dioxane. A solution of 125 mL of 1M KOH is added dropwise, and the whole is stirred at ambient temperature for one hour. There are subsequently added 125 mL of 1M HCl, and the compound is extracted with dichloromethane. The organic phase is dried over MgSO4, filtered and concentrated to dryness. The title product is obtained in the form of a powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09120791B2
Source datasetuspto-grants-2015_09
ORD IDord-c471a2cf011140b0aeaa2ee6fda0f802
Source noteuspto-grants-2015_09