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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1248204Generated: November 2, 2026

Hydrogen Bromide → HCID 20530721, compound

https://huagongshe.com/reaction/1248204

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantEthyl 4-(3-methylbenzoyl)-1-piperidinecarboxylateHCID 12852041—
SolventWaterHCID 962—
ProductHCID 20530721HCID 20530721—

Reaction Steps

A mixture of 12 parts of ethyl 4-(3-methylbenzoyl)-1-piperidinecarboxylate and 225 parts of a hydrobromic acid solution 48% in water is stirred and refluxed for 3 hours. The reaction mixture is evaporated and the residue is crystallized from 2-propanol, yielding 7.5 parts of (3-methylphenyl) (4-piperidinyl)methanone hydrobromide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04522945
Source datasetuspto-grants-1985_06
ORD IDord-686eab9ad3834c989540a878d74ade86
Source noteuspto-grants-1985_06