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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2082135Generated: November 2, 2026

4,5-Dichlorophthalic anhydride → HCID 13365966, compound

https://huagongshe.com/reaction/2082135

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,5-Dichlorophthalic anhydrideHCID 70334—
ReactantHCID 13366001HCID 13366001—
SolventPyridineHCID 1049—
ProductHCID 13365966HCID 13365966—

Reaction Steps

0.005 mol of 4,5-dichlorophthalic anhydride and 0.005 mol of 1-(4-aminobutyl)-4-(5-phenyl-2-pyrimidinyl)piperazine in 20 ml of absolute pyridine are boiled under reflux, under an atmosphere of N2, for several hours. After cooling, the product which has crystallised out is filtered off and washed with isopropyl ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05187276
Source datasetuspto-grants-1993_02
ORD IDord-a0d499112f7b4cd6b6b748f4192523e4
Source noteuspto-grants-1993_02