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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 342516Generated: October 27, 2026

Water → 3-Methyl-isonicotinic acid

https://huagongshe.com/reaction/342516

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 mol) 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 numberUS05859002
Source datasetuspto-grants-1999_01
ORD IDord-a8834cd904fd4485adfbfb930d8009fd
Source noteuspto-grants-1999_01