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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 383703Generated: October 30, 2026

Thionyl Chloride → 2,4-Dimethylpyridin-3-amine

https://huagongshe.com/reaction/383703

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantSodium AzideHCID 33557—
Reactant2,4-Dimethyl-3-pyridinecarboxylic acidHCID 1512561—
SolventWaterHCID 962—
Product2,4-Dimethylpyridin-3-amineHCID 1491078174%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 1a (0.98 g, 6.5 mmol) and thionyl chloride (5 ml) was heated to 60° C. for 1 hour. The mixture was concentrated to dryness. The mixture was then dissolved in acetone (10 ml) prior to the addition of NaN3 (0.65 g, 10 mmol) and water (5 ml). The solution was heated to 70° C. for 1 hour. Acetone was evaporated from the reaction mixture which was washed with brine and extracted with ethyl acetate. The organic layer was dried over MgSO4, concentrated and chromatographed to yield 1b (0.585 g, 4.79 mmol, 74%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08367684B2
Source datasetuspto-grants-2013_02
ORD IDord-161e9a64b288476da7e8ad850f7924be
Source noteuspto-grants-2013_02