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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1295849Generated: October 29, 2026

Cyanogen Bromide → HCID 21916332, compound

https://huagongshe.com/reaction/1295849

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanogen BromideHCID 10476—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 20780243HCID 20780243—
SolventEthanolHCID 702—
ProductHCID 21916332HCID 21916332—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a mixture of N2-(2,4,6-Trimethyl-phenyl)-pyridine-2,3-diamine (3.05 g, 13.4 mmol), NaHCO3 (2.03 g, 24.1 mmol) in ethanol (40 mL) at 0° C., was added a solution of BrCN (2.55 g, 24.1 mmol) in ethanol (6 mL). The resulting mixture was stirred at 0° C. For 1 h, room temperature for 8 h, and then 80° C. For 8 h. Ethanol was removed in vacuo and the residue was taken up into a separatory funnel with methylene chloride (100 mL). The mixture was washed sequentially with IN NaOH, water and brine, then the organic layer was dried over Na2SO4. After removing solvents, a brown solid was obtained. By LC-MS, the solid was a mixture of the desired product and the unreacted starting material in a ratio of 4:1 in favor of the desired product. Mass spec.: 253.17 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07244746B2
Source datasetuspto-grants-2007_07
ORD IDord-389a538b3bf248619c1437d05abb02da
Source noteuspto-grants-2007_07