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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 728118Generated: October 30, 2026

HCID 10086103, compound → HCID 10061020, compound

https://huagongshe.com/reaction/728118

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 10086103HCID 10086103—
SolventHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
ProductHCID 10061020HCID 1006102090.2%

Reaction Steps

A mixture of 3-methyl-2-[2-(4-acetamido-3-nitrophenyl)ethyl]pyridine (12.0 g) in ethanol (100 ml) and 17% hydrochloric acid (100 ml) was heated at 80° to 85° C. for 6 hours. The reaction mixture was evaporated in vacuo and the residue was dissolved in water. The resultant solution was adjusted to pH 8.0 with aqueous 20% potassium carbonate and extracted with a mixture of ethyl acetate and tetrahydrofuran. The extract was washed with brine and dried over magnesium sulfate. The solvent was evaporated in vacuo and the residue was recrystallized from a mixture of ethyl acetate and diethyl ether to give 3-methyl-2-[2-(4-amino-3-nitrophenyl)ethyl]pyridine (9.3 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05047411
Source datasetuspto-grants-1991_09
ORD IDord-bde028514e1043dea807725e2ff60b41
Source noteuspto-grants-1991_09