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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1448089Generated: October 27, 2026

Thionyl Chloride → HCID 20298835, compound

https://huagongshe.com/reaction/1448089

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2-Methyl-1-propyl-1,3-benzodiazole-5-carboxylic acidHCID 20298856—
SolventChloroformHCID 6212—
ProductHCID 20298835HCID 20298835—

Reaction Steps

To a stirred mixture of 18 parts of 2-methyl-1-propyl-1H-benzimidazole-5-carboxylic acid and 150 parts of trichloromethane are added dropwise 29.8 parts of thionyl chloride. Upon completion, stirring is continued for 20 minutes at reflux. The reaction mixture is cooled, dried, filtered and evaporated, yielding 22.5 parts of 2-methyl-1-propyl-1H-benzimidazole-5-carbonyl chloride monohydrochloride as a residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04179505
Source datasetuspto-grants-1979_12
ORD IDord-a778eae569254d1cabce940752985c51
Source noteuspto-grants-1979_12