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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2307813Generated: October 29, 2026

Hydrochloric Acid → methyl 1H-indazole-3-carboxylate

https://huagongshe.com/reaction/2307813

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantIndazole-3-carboxylic acidHCID 78250—
Productmethyl 1H-indazole-3-carboxylateHCID 657476—

Reaction Steps

A solution of 3-carboxyindazole (2.0 g; 12.3 mmol) and conc.HCl (2 mL) in MeOH (50 mL) was heated at reflux overnight, concentrated, diluted with 2N NaOH (aq), and extracted with EtOAc. The extracts were rinsed with brine, dried (MgSO4), and concentrated to provide the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06831175B2
Source datasetuspto-grants-2004_12
ORD IDord-31d8f367d1474c649b8a89c6657acb97
Source noteuspto-grants-2004_12