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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1851669Generated: October 31, 2026

Hydrochloric Acid → HCID 86671368, compound

https://huagongshe.com/reaction/1851669

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-HydrazinopyridineHCID 78645—
Reactanttert-Butyl 2-oxopiperidine-1-carboxylateHCID 7577838—
SolventMethanolHCID 887—
ProductHCID 86671368HCID 8667136861.4%

Reaction Steps

The following are charged to a round-bottomed flask with a magnetic stirrer: 5 g of N-Boc-piperidone, 2.45 g of pyridin-2-ylhydrazine, 100 ml of methanol and 95 ml of a solution of methanol saturated with HCl. The mixture is left to react under a nitrogen stream for 2 h at reflux temperature. The solvent is evaporated off under vacuum, the resulting product is dissolved with dichloromethane and washing is carried out with a saturated aqueous solution of NaHCO3. The organic phase is dried over Na2SO4 and the solvent is evaporated off, and 4.0 g of the title product are isolated in the form of a red oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08957211B2
Source datasetuspto-grants-2015_02
ORD IDord-568582be94314bf89245607afb3907b5
Source noteuspto-grants-2015_02