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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 854301Generated: October 27, 2026

Hydrochloric Acid → Benzyl (piperidin-4-ylmethyl)carbamate hydrochloride

https://huagongshe.com/reaction/854301

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-N-Boc-4-(N-cbz-aminomethyl)piperidineHCID 11792026—
SolventDiethyl EtherHCID 3283—
Solvent1,4-DioxaneHCID 31275—
ProductBenzyl (piperidin-4-ylmethyl)carbamate hydrochlorideHCID 45072217—

Reaction Steps

A mixture of 35 g of 4-(benzyloxycarbonylamino-methyl)-piperidine-1-carboxylic acid tert-butyl ester and 50 mL of 4N HCl in dioxane was stirred at rt for 3 h, then diluted with 200 mL of ether and filtered. The piperidin-4-ylmethyl-carbamic acid benzyl ester hydrochloride salt was obtained as a white fluffy solid. The free base was obtained by partitioning the hydrochloride between 50 mL chloroform and 50 mL saturated aqueous Na2CO3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07259157B2
Source datasetuspto-grants-2007_08
ORD IDord-f3afd1b4c0234bfa872347379dbdd1c9
Source noteuspto-grants-2007_08