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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2109232Generated: October 27, 2026

Methyl acetoacetate → 1-Isopropyl-5-methyl-1H-pyrazole-4-carbaldehyde

https://huagongshe.com/reaction/2109232

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
Reactant1-Isopropylhydrazine hydrochlorideHCID 85573—
Reactant5-cyclopropyl-1-(propan-2-yl)-1H-pyrazole-4-carbaldehydeHCID 19620135—
Product1-Isopropyl-5-methyl-1H-pyrazole-4-carbaldehydeHCID 19620099—

Reaction Steps

1-Isopropyl-5-methyl-1H-pyrazole-4-carbaldehyde was prepared with methyl acetoacetate and isopropyl hydrazine hydrochloride in the same manner as 5-cyclopropyl-1-isopropyl-1H-pyrazole-4-carbaldehyde (Example 49).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07514458B2
Source datasetuspto-grants-2009_04
ORD IDord-f9d0a8aabefe4c76839dad96ceedf0ed
Source noteuspto-grants-2009_04