Huang Yi-xiang
2006
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Journal
Henan Chemical Industry
Abstract
2,6-Bis(4-carboxyphenoxy) benzonitrile(BCPOBN) is prepared by condensation of 2,6-difluorobenzonitrile(DFBN) and p-hydroxybenzoic acid(p-HDBC) in the presence of KOH and DMSO.And then reaction of 2,6-bis(4-carboxyphenoxy)benzonitrile(BCPOBN) with sulfuryl dichloride yielded 2,6-bis(4-chloroformylphenoxy) benzonitrile(BClPOBN).