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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2376885Generated: October 30, 2026

Ethanol → HCID 21949207, compound

https://huagongshe.com/reaction/2376885

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 21949315HCID 21949315—
ProductHCID 21949207HCID 21949207—

Reaction Steps

Ethanol (100 ml) and hydrazine hydrate (1.5 g) were added to 2-(3-(4-hydroxypiperidino)propyl)isoindolin-1,3-dione (4.5 g); the reaction mixture was heated to reflux for 2.5 hours; and the produced crystals were filtered off. N-Methylmorpholine (2.5 ml) and N-(benzyloxycarbonyloxy)succinimide (5.2 g) were added to the filtrate; and the reaction mixture was stirred at room temperature overnight. Aqueous solution of sodium hydrogencarbonate was added to the reaction mixture; extraction was performed with ethyl acetate; and the organic layer was washed with water and brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to yield the title compound (2.96 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07468380B2
Source datasetuspto-grants-2008_12
ORD IDord-8b606c974a58464c9dcce3df75a70d83
Source noteuspto-grants-2008_12