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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2297024Generated: November 2, 2026

4-Methoxy-2-aminobenzothiazole → 2-Amino-4-hydroxybenzothiazole

https://huagongshe.com/reaction/2297024

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methoxy-2-aminobenzothiazoleHCID 21622—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventEthanethiolHCID 6343—
Product2-Amino-4-hydroxybenzothiazoleHCID 24057—

Reaction Conditions

Temperature2.5 °C

Reaction Steps

A solution of AlCl3 (5 mmole) in EtSH (10 mL) was cooled to 0° C. and treated with 2-amino-4-methoxybenzothiazole (1 mmole). The mixture was stirred at 0-5° C. for 2 h. Evaporation and extraction gave 2-amino-4-hydroxybenzothiazole as white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06489476B1
Source datasetuspto-grants-2002_12
ORD IDord-19fed726a11443f3972e553b933a70a5
Source noteuspto-grants-2002_12