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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092176Generated: November 1, 2026

3,4-dihydro-2H-1-benzopyran-3-amine hydrochloride → 2-Aminochroman

https://huagongshe.com/reaction/2092176

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-dihydro-2H-1-benzopyran-3-amine hydrochlorideHCID 205708—
ReactantSodium BicarbonateHCID 516892—
Product2-AminochromanHCID 20627838—

Reaction Steps

3-aminochroman hydrochloride (0.37 g, 2 mmol) was neutralized with aqueous sodium bicarbonate, extracted with diethyl ether, dried with magnesium sulfate, and the solvent evaporated to give 2-aminochroman.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440691B2
Source datasetuspto-grants-2013_05
ORD IDord-6c2d2e3d05e04fe18c5edec5546d3a87
Source noteuspto-grants-2013_05