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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905669Generated: October 29, 2026

Potassium Carbonate → HCID 67388354, compound

https://huagongshe.com/reaction/905669

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantN-3-BromopropylphthalimideHCID 21611—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantTrimethylsilyl isocyanateHCID 70696—
Reactant1-(4-Nitrophenyl)piperazineHCID 80447—
SolventTetrahydrofuranHCID 8028—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 67388354HCID 67388354—

Reaction Steps

1-(4-Nitrophenyl)piperazine and N-(3-bromopropyl)phthalimide were allowed to undergo the reaction under heating in 1-methyl-2-pyrrolidone in the presence of potassium carbonate. The resulting compound was allowed to react with hydrazine monohydrate in THF. The resulting compound was allowed to react with trimethylsilyl isocyanate in THF and then subjected to catalytic hydrogenation in the same manner as in Reference Example 3 to obtain {3-[4-(4-aminophenyl)piperazin-1-yl]propyl}urea. F: 276.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012959B2
Source datasetuspto-grants-2011_09
ORD IDord-838dd5df9d3847d08b56a0c2234703bc
Source noteuspto-grants-2011_09