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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 647362Generated: October 30, 2026

Chloral → HCID 20485999, compound

https://huagongshe.com/reaction/647362

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloralHCID 6407—
Reactant2,6-DimethoxyphenolHCID 7041—
ReactantHCID 13050550HCID 13050550—
Reactant4-[1-Hydroxy-2-(methylamino)ethyl]-2,6-dimethoxyphenol--hydrogen chloride (1/1)HCID 69854880—
ProductHCID 20485999HCID 20485999—

Reaction Steps

A process for preparing 1-(3,5-dimethoxy-4-hydroxy phenyl)-2-(N-methylamino) ethanol hydrochloride is described by reacting 2,6-dimethoxyphenol with anhydrous chloral in the presence of a catalyst, hydrolyzing 1-(3,5-dimethoxy-4-hydroxyphenyl)2,2,2-trichloro ethanol and subsequently isolating the 3,5-dimethoxy-4-hydroxyphenyl glyoxal thus obtained; finally, this compound, in the form of the bisulfite, is directly converted to the desired product by amination with methylamine in the presence of hydrogen with a hydrogenation catalyst and the final product is converted into the hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04408074
Source datasetuspto-grants-1983_10
ORD IDord-e74d55d166fb463b8b530b62210df130
Source noteuspto-grants-1983_10