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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 931166Generated: October 26, 2026

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

https://huagongshe.com/reaction/931166

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 Conditions

Temperature80 °C

Reaction Steps

Thionyl chloride (20 mL) was added to (1-methyl-1H-1,2,4-triazol-5-yl)methanol (2.0 g) at 0° C. The reaction mixture was stirred for 2 h at 80° C. The mixture was cooled to room temperature and then was concentrated under reduced pressure. Ethyl acetate was added to the resulting precipitate and the mixture was filtered under a nitrogen atmosphere to afford 5-(chloromethyl)-1-methyl-1H-1,2,4-triazole hydrochloride (1.5 g). The material was used for the next step without further purification. MS (EI+) (M+) 131.0

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296745B2
Source datasetuspto-grants-2016_03
ORD IDord-9f112ac358d64094b49a5e3870b95526
Source noteuspto-grants-2016_03