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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1441882Generated: October 26, 2026

Ethylenediamine → 6-Amino-4-methylnicotinonitrile

https://huagongshe.com/reaction/1441882

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylenediamineHCID 3301—
Reactant2-Amino-5-bromo-4-methylpyridineHCID 817695—
ReactantHCID 178418546HCID 178418546—
SolventDimethylacetamideHCID 31374—
Product6-Amino-4-methylnicotinonitrileHCID 996410387%

Reaction Conditions

Temperature170 °C

Reaction Steps

A mixture of 5-bromo-4-methyl-pyridin-2-ylamine (500 mg, 2.67 mmol), CuCN (478 mg, 5.34 mmol) and DMA (2 mL) was stirred under nitrogen for 20 h at 170° C. The reaction mixture was cooled and added to 50 mL of a 20% aqueous solution of ethane-1,2-diamine. The layers were separated and the aqueous layer was extracted 3× with EtOAc. The combined organics were washed with water followed by brine and dried over MgSO4. Concentration in vacuo afforded compound 851A (309 mg, 87%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07655689B2
Source datasetuspto-grants-2010_02
ORD IDord-f1cda6e7b855453aba081b91d743fa7d
Source noteuspto-grants-2010_02