Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 725892Generated: October 30, 2026

Hydrogen Bromide → HCID 19709982, compound

https://huagongshe.com/reaction/725892

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 19709989HCID 19709989—
ProductHCID 19709982HCID 1970998236%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 1-methyl-4-(7-methoxy-2-benzofuranyl)piperidine (5.6 g) and 48% HBr (40 mi) was stirred at 120° C. for 30 minutes. After cooling to room temperature, the mixture was neutralized with 10% sodium hydroxide solution and extracted with 1:1 ethyl acetate/1-butanol. The organic extract was washed with brine, concentrated and the resulting oil was chromatographed (silica gel, eluting with 20% MeOH/DCM and 0.5% NH4OH) to afford 1.9 g of 1-methyl-4-(7-hydroxy-2-benzofuranyl)piperidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05708007
Source datasetuspto-grants-1998_01
ORD IDord-500ef90c4b81465e9d978e7cde786813
Source noteuspto-grants-1998_01