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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 969585Generated: October 26, 2026

Hydrochloric Acid → 4-Hydroxy-4-(thiazol-5-yl)cyclohexanone

https://huagongshe.com/reaction/969585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium CarbonateHCID 10340—
Reactant8-Hydroxy-8-(5-thiazolyl)-1,4-dioxaspiro[4.5]decaneHCID 59017441—
SolventTetrahydrofuranHCID 8028—
Product4-Hydroxy-4-(thiazol-5-yl)cyclohexanoneHCID 5901743998%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of 8-(1,3-thiazol-5-yl)-1,4-dioxaspiro[4.5]decan-8-ol (0.95 g, 4.14 mmol) in THF (20 mL) was added an aqueous solution of 3 N HCl (10 mL). The mixture was stirred for 1 h at 50° C. After cooling to room temperature, the solution was treated with Na2CO3 to pH 8 and extracted with EtOAc three times. The combined organic layers were washed with saturated NaCl solution, dried (MgSO4), and concentrated to give 0.78 g (98%) of the desired product. MS (M+H)+=198.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07307086B2
Source datasetuspto-grants-2007_12
ORD IDord-4837684861564d86aca5fdf67029f940
Source noteuspto-grants-2007_12