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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1936729Generated: October 30, 2026

Hydrochloric Acid → HCID 70025388, compound

https://huagongshe.com/reaction/1936729

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium CarbonateHCID 10340—
ReactantAcetonedicarboxylic acidHCID 68328—
Reactant2,5-DimethoxytetrahydrofuranHCID 79098—
Reactant1-Phenethylamine, (+)-HCID 643189—
CatalystHydrochloric AcidHCID 313—
SolventWaterHCID 962—
ProductHCID 70025388HCID 70025388—

Reaction Steps

Three drops of 5M hydrochloric acid were added to a mixture of 2,5-dimethoxytetrahydrofuran (16.5 g) and water (70 ml). A cooled mixture of (R)-a-methylbenzylamine (15.125 g) and 5M hydrochloric acid (30 ml) was then added followed by 1,3-acetonedicarboxylic acid (18.26 g) sodium acetate (10 g) and water (100 ml). After 5 days the mixture was basified with aqueous sodium carbonate solution and extracted with ethyl acetate. The extracts were washed with brine, dried (MgSO4) and evaporated under reduced pressure. Chromatography [SiO2; ethyl acetate:hexane (10:90) to (20:80)] gave (R)-8-(1-phenylethyl)-8-azabicyclo[3.2.1]octan-3-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06391883B1
Source datasetuspto-grants-2002_05
ORD IDord-3d4995949b014ffcb8a349fe2627518f
Source noteuspto-grants-2002_05