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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 346078Generated: October 31, 2026

Sulfuric Acid → HCID 131717045, compound

https://huagongshe.com/reaction/346078

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantHCID 19990236HCID 19990236—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 131717045HCID 131717045—

Reaction Steps

500 mg (3.20 mmoles) of 1-methyl-3-methylamino-4-nitropyrazol are hydrated in 50 ml absolute methanol with catalytic quantities of palladium/carbon at room temperature and 30 bar. The hydration is concluded after 17 hours, a pale orange precipitate is precipitated out of the filtrated solution when adding 314 mg (3.20 mmoles) of concentrated sulfuric acid, which precipitate is removed by suction and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05061289
Source datasetuspto-grants-1991_10
ORD IDord-7c7e46f2a4a547f295b7aa5e07ca8f09
Source noteuspto-grants-1991_10