Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 631999Generated: October 25, 2026

Hydrochloric Acid → 5-Methyl-6-sulfo-pyridine-2-carboxylic acid methyl ester

https://huagongshe.com/reaction/631999

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
Reactant5-Methyl-6-sulfo-pyridine-2-carboxylic acidHCID 86674744—
Solvent1,4-DioxaneHCID 31275—
Product5-Methyl-6-sulfo-pyridine-2-carboxylic acid methyl esterHCID 86674745—

Reaction Steps

To a mixture of 5-methyl-6-sulfo-pyridine-2-carboxylic acid (0.8 g, 3.69 mmol) in methanol (20 mL) was added 4 N hydrogen chloride in dioxane (8 mL). The mixture was stirred overnight at room temperature. Undissolved solid was filtered off, and the filtrate was concentrated to give the product as yellow solid 0.5 g; MS (EI): m/e=232.0 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321727B2
Source datasetuspto-grants-2016_04
ORD IDord-abb0d60a5d7047a485f8d8066952afef
Source noteuspto-grants-2016_04