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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 280545Generated: October 29, 2026

1-Methylpiperazine → HCID 19842247, compound

https://huagongshe.com/reaction/280545

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
ReactantHCID 13935114HCID 13935114—
SolventWaterHCID 962—
ProductHCID 19842247HCID 1984224786.9%

Reaction Steps

Ethyl 6-chloro-3-oxo-2-(4-methoxyphenyl)isoindoline-1-acetate (1.0 g) and N-methylpiperazine (1.3 g) was heated at 110° C. for 4 hours in an nitrogen stream. After cooling, water (40 ml) was added to the reaction mixture and crystals separated were collected by filtration, washed with water and then dried. Recrystallization from ether gave 5-chloro-2-(4-methoxyphenyl)-3-(4-methylpiperazin-1-yl)carbonylmethylisoindolin-1-one (1.0 g). The product was identified with the compound No. 13 in Table 5 and melted at 169°-171° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04590189
Source datasetuspto-grants-1986_05
ORD IDord-12169c8d958049bc8d23f53cc7e60184
Source noteuspto-grants-1986_05