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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1389300Generated: October 31, 2026

Thionyl Chloride → HCID 20298835, compound

https://huagongshe.com/reaction/1389300

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 numberUS04243806
Source datasetuspto-grants-1981_01
ORD IDord-6e01950a4b5e4166872906c17be4e96f
Source noteuspto-grants-1981_01