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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1081270Generated: November 2, 2026

Isatin → HCID 23363840, compound

https://huagongshe.com/reaction/1081270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsatinHCID 7054—
ReactantSodium hydrideHCID 24758—
ReactantHCID 23363873HCID 23363873—
SolventDimethylformamideHCID 6228—
ProductHCID 23363840HCID 23363840—

Reaction Conditions

Temperature80 °C

Reaction Steps

1H-Indole-2,3-dione (2.9 g) in dry DMF (5 ml) at 0° C. was treated with sodium hydride (80% dispersion in mineral oil, 600 mg). The mixture was warmed to 40° C. and after 45 minutes a solution of 1-(2-chloroethyl)-4-[(4-fluorophenyl)methyl]piperazine (5.1 g) in dry DMF (8 ml) was added. The reaction mixture was heated at 80° C. for 5 hours and then evaporated under reduced pressure. The residue was recrystallised twice to give 1-[2-[4-[(4-fluorophenyl)methyl]-1-piperazinyl]ethyl]-1H-indole-2,3-dione, m.p. 146°-147° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05585378
Source datasetuspto-grants-1996_12
ORD IDord-09ff7a381dd94e72812a7a24d2a9b4f5
Source noteuspto-grants-1996_12