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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 518858Generated: November 2, 2026

Hydrazine hydrate (1:1) → HCID 86698011, compound

https://huagongshe.com/reaction/518858

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1,7-Diazaspiro[4.4]nonane-1-carboxylic acid, 7-[3-(1-methylethoxy)-4-nitrophenyl]-, 1,1-dimethylethyl esterHCID 86698010—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 86698011HCID 8669801198.5%

Reaction Steps

A mixture of 400 mg of 2-methylpropan-2-yl 7-[4-nitro-3-(propan-2-yloxy)phenyl]-1,7-diazaspiro[4.4]nonane-1-carboxylate, 592 mg of hydrazine hydrate and 52.5 mg of 10% palladium-on-carbon in 10 ml of ethanol is refluxed for 1 h. The mixture is filtered and the filtrate is concentrated under reduced pressure, so as to obtain 365 mg of 2-methylpropan-2-yl 7-[4-amino-3-(propan-2-yloxy)phenyl]-1,7-diazaspiro[4.4]nonane-1-carboxylate in the form of a mauve gum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09115140B2
Source datasetuspto-grants-2015_08
ORD IDord-d3fd5281d19b4f3fadf8061b5277b533
Source noteuspto-grants-2015_08