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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1064383Generated: November 2, 2026

Hydrochloric Acid → HCID 22273770, compound

https://huagongshe.com/reaction/1064383

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 22273755HCID 22273755—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 22273770HCID 22273770—

Reaction Steps

0.2 g (0.6 mmol) of (±)-7-[(4-phenylpiperidin-1-yl)methyl]-6,7,8,9-tetrahydro-5H-benzocyclohepten-5-ol were dissolved in 5 mL of 1,4-dioxane and 16 mL of 37% HCl and heated to reflux for 2 h. The reaction mixture was then basified with NaOH and extracted with CH2Cl2. The organic phase was dried and the solvent was removed in vacuo. The resulting crude product was purified by chromatography, eluting with a mixture CH2Cl2/MeOH 100:2 respectively; The compound was dissolved in Et2O and brought to acidic pH with Et2O/HCl. The resulting white solid was triturated with Et2O, filtered and dried, yielding 0.02 g of the title compound. m.p.=268-270° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06969724B2
Source datasetuspto-grants-2005_11
ORD IDord-5650a1e0bc674e3798dd9868e9ac12f6
Source noteuspto-grants-2005_11