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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 371619Generated: October 31, 2026

Hydrochloric Acid → 2-Pyridinecarbonitrile, 3,5,6-trichloro-4-hydrazino-

https://huagongshe.com/reaction/371619

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrazineHCID 9321—
ReactantTetrachloropicolinonitrileHCID 87323—
Reactant3,5,6-Trichloro-4-hydrazinylpyridine-2-carboxylic acidHCID 1383439—
Product2-Pyridinecarbonitrile, 3,5,6-trichloro-4-hydrazino-HCID 1898616—

Reaction Steps

The 3,5,6-trichloro-4-hydrazinopicolinic acid can be prepared in a variety of ways. In one such method, tetrachloropicolinonitrile is reacted with hydrazine in the presence of a reaction medium and hydrogen chloride acceptor. The 3,5,6-trichloro-4-hydrazinopicolinonitrile product thus formed is reacted with an acid hydrolysis agent to prepare 3,5,6-trichloro-4-hydrazinopicolinic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04087431
Source datasetuspto-grants-1978_05
ORD IDord-97649d3c115f482aa74d07833af85f6b
Source noteuspto-grants-1978_05