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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57569Generated: October 29, 2026

Hydrogen chloride-ethyl acetate → 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine hydrochloride

https://huagongshe.com/reaction/57569

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen chloride-ethyl acetateHCID 21866389—
Reactanttert-butyl 4-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]piperidine-1-carboxylateHCID 45480279—
SolventEthyl AcetateHCID 8857—
Product4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine hydrochlorideHCID 66759182—

Reaction Steps

A solution of tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate (8.2 g, 21.73 mmol) and 30 mL of HCl-EA (5.0 N) in 15 mL of EA was stirred at room temperature for 2 hours. The volatiles were removed in vacuo to give 7.3 g of title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434726B2
Source datasetuspto-grants-2016_09
ORD IDord-e92d84027aeb47f4b2e6e398c9bb2f20
Source noteuspto-grants-2016_09