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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2121077Generated: November 1, 2026

Water → 3-Methyl-isonicotinic acid

https://huagongshe.com/reaction/2121077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3,4-DimethylpyridineHCID 11417—
ReactantSelenium DioxideHCID 24007—
SolventDiphenyl EtherHCID 7583—
Product3-Methyl-isonicotinic acidHCID 150200344%

Reaction Conditions

Temperature185 °C

Reaction Steps

To a hot (155° C.) solution of 10.7 g (0.1 mol) of 3,4-lutidine in 100 mL diphenylether, was added 18 g (0.16 mmol) selenium dioxide in portions. After about 20 minutes, the reaction was heated to 185° C. and allowed to react for approximately thirty minutes. After cooling, the reaction mixture was diluted with water and filtered. The filtrate was extracted with chloroform and the chloroform extracts were then concentrated under reduced pressure to provide 6.0 g of a pale brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06693199B2
Source datasetuspto-grants-2004_02
ORD IDord-d26b1967175b4e9d82ada54fbd611f9d
Source noteuspto-grants-2004_02