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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 915456Generated: November 1, 2026

Methylhydrazine → HCID 13370538, compound

https://huagongshe.com/reaction/915456

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylhydrazineHCID 6061—
ReactantHCID 178473083HCID 178473083—
SolventEthanolHCID 702—
ProductHCID 13370538HCID 13370538—
ProductHCID 67452186HCID 67452186—

Reaction Steps

In analogy to the procedure described for example 4 b], (Z)-4-(3,4-dichloro-phenyl)-2-hydroxy-4-oxo-but-2-enoic acid ethyl ester was reacted with methylhydrazine in ethanol under reflux conditions to give 5-(3,4-dichloro-phenyl)-2-methyl-2H-pyrazole-3-carboxylic acid ethyl ester as colorless crystals and 5-(3,4-dichloro-phenyl)-1-methyl-1H-pyrazole-3-carboxylic acid ethyl ester as colorless crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07265149B2
Source datasetuspto-grants-2007_09
ORD IDord-43a697ce0c0e4dbfa95d9acce2206622
Source noteuspto-grants-2007_09