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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2164545Generated: October 31, 2026

4-(Aminosulfonyl)-5-chlorophthalimide → Phthalimide

https://huagongshe.com/reaction/2164545

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(Aminosulfonyl)-5-chlorophthalimideHCID 19733—
ReactantN-(2-Aminoethyl)piperidineHCID 33944—
ReactantHCID 13473187HCID 13473187—
SolventEthanolHCID 702—
ProductPhthalimideHCID 680971%

Reaction Steps

6-Chloro-2,3-dihydro-2-[2-(1-piperidinyl)ethyl]-1,3-dioxo-1H-isoindole-5-sulfonamide. Reaction of a mixture of 4-chloro-5-sulfamoylphthalimide and 2-(1-piperidinyl)ethylamine according to the procedure of Example 1(a) afforded a 71% yield of the 1,3-dioxoisoindole intermediate, m.p. 200°-202° from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04505911
Source datasetuspto-grants-1985_03
ORD IDord-472f529083b443629aee8941f4a74366
Source noteuspto-grants-1985_03