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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1084330Generated: November 1, 2026

Ammonia → HCID 18960789, compound

https://huagongshe.com/reaction/1084330

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHCID 14256373HCID 14256373—
CatalystCopper SulfateHCID 24462—
ProductHCID 18960789HCID 18960789—

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 500 mg of 5-bromo-pyridine-2,4-dicarboxylic acid from Example 2, 100 mg of copper sulfate and 20 ml of ammonia solution (d=0.91) is heated at 160° C. in an autoclave for 4 hours. The solution is evaporated to dryness, the solid is heated with a little methanol and the insoluble material is removed from the solution. After 20 hours, a white solid precipitates out at 0° C. and is filtered off and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05004748
Source datasetuspto-grants-1991_04
ORD IDord-40334f8fff874de1804d943a41794fba
Source noteuspto-grants-1991_04