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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1165080Generated: October 31, 2026

Thionyl Chloride → 1-methyl-1H-indazole-3-carbonyl chloride

https://huagongshe.com/reaction/1165080

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant1H-Indazole-3-carboxylic acid, 1-methyl-HCID 689105—
SolventChloroformHCID 6212—
Product1-methyl-1H-indazole-3-carbonyl chlorideHCID 7022055—

Reaction Steps

A stirred mixture of 1-methyl-3-indazolylcarboxylic acid (0.31 g), thionyl chloride (2 ml) and chloroform (10 ml) was refluxed for 2 hours and the solvent was evaporated to give a residue of 1-methyl-3-indazolylcarbonyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04906755
Source datasetuspto-grants-1990_03
ORD IDord-67b6ea987cec4a10bcba73a40a00b0aa
Source noteuspto-grants-1990_03