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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 704874Generated: October 30, 2026

4,5-Dichlorophthalic anhydride → HCID 13365966, compound

https://huagongshe.com/reaction/704874

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 numberUS04988809
Source datasetuspto-grants-1991_01
ORD IDord-499ad3f08d3e41b4a007d2baec491c51
Source noteuspto-grants-1991_01