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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1895909Generated: October 31, 2026

Hydrazine hydrate (1:1) → HCID 67118448, compound

https://huagongshe.com/reaction/1895909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 67118409HCID 67118409—
SolventEthanolHCID 702—
ProductHCID 67118448HCID 6711844886%

Reaction Conditions

Temperature50 °C

Reaction Steps

Hydrazine monohydrate (636 mg, 10.8 mmol) was added to a solution of 2-(1-(4-(trifluoromethoxy)phenylsulfonyl)piperidin-4-yloxy)isoindoline-1,3-dione (4.23 g, 9.00 mmol) in ethanol (40 ml) and stirred at 50° C. for 2 hours. The resulting solid was filtered off and concentrated in vacuo. The residue was triturated with diethyl ether (80 ml), and the resulting solid was filtered off again and concentrated in vacuo to give O-(1-(4-(trifluoromethoxy)phenylsulfonyl)piperidin-4-yl)hydroxylamine (2.63 g, 86%) as a white solid: LCMS: 341 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518934B2
Source datasetuspto-grants-2013_08
ORD IDord-79cce8794d3c410c8df67db562a6d69e
Source noteuspto-grants-2013_08