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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1953733Generated: October 31, 2026

Glycolic Acid → HCID 178423977, compound

https://huagongshe.com/reaction/1953733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantGlycolic AcidHCID 757—
Reactant4,6-Dimethylpyridine-2,3-diamineHCID 11029902—
SolventTolueneHCID 1140—
ProductHCID 178423977HCID 17842397715.2%

Reaction Steps

A mixture of 13.72 g of 2,3-diamino-4,6-dimethylpyridine and 25 g of glycolic acid in 200 ml of toluene was heated under reflux for 3.5 hours, whilst distilling off azeotropically the water formed in the course of the reaction. At the end of this time, the reaction mixture was freed from the toluene by decantation and the oily residue was purified by column chromatography through silica gel, using a gradient elution method, with mixtures of ethanol and ethyl acetate in ratios ranging from 2:3 to 1:1 by volume as a eluent, to give 2.7 g of the title compound, melting at 244-246° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06117893
Source datasetuspto-grants-2000_09
ORD IDord-a80b2b4bd17946639e0a5599033d06f9
Source noteuspto-grants-2000_09