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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1913229Generated: October 31, 2026

Hydrochloric Acid → HCID 66733850, compound

https://huagongshe.com/reaction/1913229

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
Reactant5-(1,4-Dioxaspiro[4.5]decan-8-yl)pyrazolo[1,5-a]pyrimidin-7-amineHCID 66733489—
SolventDichloromethaneHCID 6344—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 66733850HCID 6673385093%

Reaction Conditions

Temperature80 °C

Reaction Steps

In a 40 mL scintillation vial was combined 5-(1,4-dioxaspiro[4.5]decan-8-yl)pyrazolo[1,5-a]pyrimidin-7-amine (Int-5g, 5.54 mmol, 1.52 g), EtOH (10 mL), H2O (4 mL) and 4N HCl:dioxane (4 mL). The vial was capped, sealed and the reaction was heated to 80° C. overnight. After 18 hours, the reaction was cooled to room temperature and diluted with DCM (100 mL). The solution was washed with saturated NaHCO3(aq) and extracted with DCM twice more. The combined organics were dried over Na2SO4 and the solvent was removed in vacuo to yield 4-(7-aminopyrazolo[1,5-a]pyrimidin-5-yl)cyclohexanone (Int-5h) (1.18 g, 93% yield) as a pale orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609675B2
Source datasetuspto-grants-2013_12
ORD IDord-920a11ede20f46499615c82af0b3ed8f
Source noteuspto-grants-2013_12