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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 267321Generated: October 28, 2026

Nitric Acid → HCID 178509855, compound

https://huagongshe.com/reaction/267321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
Reactant4-CyanobenzaldehydeHCID 66042—
ReactantHCID 178513182HCID 178513182—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178509855HCID 178509855—

Reaction Steps

A boiling solution of 13.1 grams of 4-cyanobenzaldehyde in 250 milliliters of ethanol is stirred vigorously as a solution of 6.1 grams of 1,3-diaminoguanidine nitrate and 0.5 milliliters of concentrated nitric acid in 50 milliliters of water is added in one portion. The reaction mixture is stirred as the temperature recedes to room temperature. The reaction mixture is then allowed to stand for several hours. The precipitate which forms is collected, washed with hot ethanol, air dried and finally dried at 60°C. under reduced pressure. The yield is 15.1 grams of product and the melting point is 205°-210°C. with decomposition.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03941825
Source datasetuspto-grants-1976_03
ORD IDord-3724883a1e924886b94bb773574b583b
Source noteuspto-grants-1976_03