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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2099709Generated: October 25, 2026

Hydrogen Bromide → 4-(2-(Ethylamino)propyl)-1,2-benzenediol hydrobromide

https://huagongshe.com/reaction/2099709

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant[2-(3,4-Dimethoxy-phenyl)-1-methyl-ethyl]-ethyl amineHCID 22061570—
Product4-(2-(Ethylamino)propyl)-1,2-benzenediol hydrobromideHCID 130356—

Reaction Steps

A solution of 1.1 g (4.92 mmol) of 2A in 10 mL of 48% HBr was heated to reflux under argon atmosphere for 3.5 hours and then concentrated to dryness under reduced pressure. To this was added 50 mL of dichloromethane and concentrated to dryness under reduced pressure to give crude 2B as a dark brown powder (M+Na, 318).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07569676B2
Source datasetuspto-grants-2009_08
ORD IDord-1b9609bfe6814631b914b313d1b6d23a
Source noteuspto-grants-2009_08