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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1376877Generated: October 31, 2026

Isoamyl Nitrite → 1H-Pyrazol-5-amine,1-methyl-4-nitro-(9CI)

https://huagongshe.com/reaction/1376877

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsoamyl NitriteHCID 8053—
Reactant2-Methyl-2H-pyrazol-3-ylamineHCID 136927—
Product1H-Pyrazol-5-amine,1-methyl-4-nitro-(9CI)HCID 588382—

Reaction Steps

Total yields of up to 46 percent are obtained when the 5-amino-1-methylpyrazole is converted with isoamyl nitrite to produce 5-amino-1-methyl-4-nitropyrazole and reduced with zinc(II)chloride to give 4,5-diamino-1-methylpyrazole according to H. Dorn, et al., Liebigs Ann. Chem. 717, p. 118 (1968).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05663366
Source datasetuspto-grants-1997_09
ORD IDord-7210d6ee4bb14b728aa00fa361390187
Source noteuspto-grants-1997_09