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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 74270Generated: October 29, 2026

Methanol → 5-(Benzoxazol-2-yl)-1-(2-hydroxyethyl)-2-methylbenzimidazole

https://huagongshe.com/reaction/74270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthanimidic acid, methyl ester, hydrochloride (1:1)HCID 10313100—
Reactant2-(2-(2-Hydroxyethyl)aminoanilin-5-yl)benzoxazoleHCID 67498884—
SolventWaterHCID 962—
Product5-(Benzoxazol-2-yl)-1-(2-hydroxyethyl)-2-methylbenzimidazoleHCID 6749882049%

Reaction Steps

To a methanol (5 mL) solution of 2-(2-(2-hydroxyethyl)aminoanilin-5-yl)benzoxazole (see Working Example 88-1) (0.10 g, 0.4 mmol) was added methyl acetimidate hydrochloride (0.08 g, 0.7 mmol), and this was heated to reflux for 3 hours. After the reaction was complete, water was added, and the precipitated crystals were filtered, and after being washed with water were dried to yield the title compound (0.05 g, 49% yield) as white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08829035B2
Source datasetuspto-grants-2014_09
ORD IDord-4d905d6b96b34371953861aa49e991ae
Source noteuspto-grants-2014_09