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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 623550Generated: October 31, 2026

Hydrochloric Acid → Methyl 2-propionamidoisonicotinate

https://huagongshe.com/reaction/623550

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPropionyl chlorideHCID 62324—
ReactantMethyl 2-aminopyridine-4-carboxylateHCID 236984—
SolventPyridineHCID 1049—
ProductMethyl 2-propionamidoisonicotinateHCID 6750836478.2%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a stirred solution of methyl 2-aminoisonicotinate (1.00 g, 6.57 mmol) in pyridine (22 mL) is added propionyl chloride (0.69 mL, 7.89 mmol) at 0° C. After stirring at 0° C. for 2 hours, the reaction mixture is poured into 2M hydrochloric acid (100 mL) and extracted with ethyl acetate (100 mL). The organic layer is dried over sodium sulfate, and concentrated under reduced pressure to give 1.07 g (78% yield) of the title compound as a yellow solid. This material is used for the next reaction (Step-2) without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09302991B2
Source datasetuspto-grants-2016_04
ORD IDord-759ead9dd237439e8221e39e0aeb5275
Source noteuspto-grants-2016_04