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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1016394Generated: October 27, 2026

Thionyl Chloride → 5-(chloromethyl)-1-methyl-1H-1,2,4-triazole hydrochloride

https://huagongshe.com/reaction/1016394

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant(1-methyl-1H-1,2,4-triazol-5-yl)methanolHCID 11073377—
Product5-(chloromethyl)-1-methyl-1H-1,2,4-triazole hydrochlorideHCID 22285332—

Reaction Steps

(2-Methyl-2H-[1,2,4]triazol-3-yl)methanol (1 g) was added in portions to thionyl chloride (20 ml) and the solution was stirred at room temperature for 30 mins. The reaction mixture was concentrated under vacuum and the residue was azeotroped with toluene (2×30 ml) and dried under high vacuum to leave a crude product (1.3 g) which was used in the next step without characterisation or further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06476030B1
Source datasetuspto-grants-2002_11
ORD IDord-faab44345635431e97048799e00cb3ad
Source noteuspto-grants-2002_11