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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 500540Generated: October 30, 2026

Hydrazine hydrate (1:1) → 6-Oxo-1-((2-(trimethylsilyl)ethoxy)methyl)-1,6-dihydropyridazine-4-carbohydrazide

https://huagongshe.com/reaction/500540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant6-Oxo-1-(2-trimethylsilanyl-ethoxymethyl)-1,6-dihydro-pyridazine-4-carboxylic acid ethyl esterHCID 24851702—
SolventEthanolHCID 702—
Product6-Oxo-1-((2-(trimethylsilyl)ethoxy)methyl)-1,6-dihydropyridazine-4-carbohydrazideHCID 24851703—

Reaction Conditions

Temperature50 °C

Reaction Steps

The title compound from Example 19.2 (0.85 g, 2.8 mmol) was stirred in ethanol. Hydrazine hydrate (0.720 g, 14.2 mmol) was added to the solution and the reaction was stirred at 50° C. for 1 hour. The reaction was concentrated and triturated with methanol and diethyl ether to produce a precipitate which was collected by vacuum filtration as the title compound (0.56 g, 57%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07772235B2
Source datasetuspto-grants-2010_08
ORD IDord-a7cd0a8d955c472eaf3c100b1e724384
Source noteuspto-grants-2010_08