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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2406229Generated: October 31, 2026

Hydrochloric Acid → HCID 67054286, compound

https://huagongshe.com/reaction/2406229

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 67054497HCID 67054497—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67054286HCID 67054286100.1%

Reaction Conditions

Temperature85 °C

Reaction Steps

8-((4′-Chlorobiphenyl-2-yl)methyl)-1,4-dioxa-8-azaspiro[4.5]decane (4.73 g, 13.76 mmol) was dissolved in dioxane (50 mL) and water (30 mL). Hydrochloric acid (37%, 14.3 mL, 174 mmol) was added, and the reaction was heated to 85° C. for 26 hours. After cooling to room temperature, the volatiles are removed in vacuo. The remaining aqueous phase is basified to pH ˜9 with 2M NaOH, and then extracted with CH2Cl2. The organic layers are dried over MgSO4 and concentrated to afford the title compound (4.13 g, 100% yield). MS (ESI) m/e (M+H)+: 300.4

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08809352B2
Source datasetuspto-grants-2014_08
ORD IDord-8a08b1a1fec74feeb17a326be7da2af4
Source noteuspto-grants-2014_08