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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 620048Generated: October 30, 2026

Homophthalic anhydride → HCID 13365959, compound

https://huagongshe.com/reaction/620048

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHomophthalic anhydrideHCID 12801—
Reactant4-(2-Pyrimidinyl)-1-piperazinebutanamineHCID 12840705—
SolventDichloromethaneHCID 6344—
ProductHCID 13365959HCID 13365959—

Reaction Steps

0.02 mol of 2-benzopyran-1,3(4H)dione and 0.02 mol of 1-(4-aminobutyl)-4-(2-pyrimidinyl)piperazine are heated at 160°-170° C. for 1 hour under an atmosphere of N2, with stirring. The mixture is then allowed to cool and the substance is dissolved in methylene chloride. The substancw is purified over a silica gel column (mobile phase: CH2Cl2 /iprOH (10:0.5)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04818756
Source datasetuspto-grants-1989_04
ORD IDord-a44e09e548bc4f6d862b723ed508771c
Source noteuspto-grants-1989_04