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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2082137Generated: October 31, 2026

Homophthalic anhydride → HCID 13365959, compound

https://huagongshe.com/reaction/2082137

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 substance is purified over a silica gel column (mobile phase: CH2Cl2 /iprOH (10:0.5)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05187276
Source datasetuspto-grants-1993_02
ORD IDord-a3b83104db2e4daf8476a2be05408d1b
Source noteuspto-grants-1993_02