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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1171168Generated: November 3, 2026

Pyridine-2-carbonitrile → Cqp4A25CE2

https://huagongshe.com/reaction/1171168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridine-2-carbonitrileHCID 7522—
ReactantHydrazine hydrate (1:1)HCID 24654—
SolventEthanolHCID 702—
ProductCqp4A25CE2HCID 5481389137.5%

Reaction Conditions

Temperature0 °C

Reaction Steps

2-Cyano pyridine (500 mg, 1.923 mmol) and Hydrazine hydrate (252 mg, 1.923 mmol) were mixed together in EtOH (3 ml). The clear solution was left at 15° C. (in refrigerator) for 18 h (Monitored by TLC). Ethanol was concentrated under reduced pressure and then the reaction mixture was diluted with diethyl ether (50 ml) and water. The diethyl ether layer was separated, washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure to 1/5th Volume. The ethereal solution was cooled to 0° C. and the obtained solid precipitate was collected over the filtration and dried under vacuum, which gave the 2-pyridine Amidrazone (360 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07829589B2
Source datasetuspto-grants-2010_11
ORD IDord-69fecea4563a43a794e7340f3caa5c4e
Source noteuspto-grants-2010_11