Li Qing-shan
2010
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Journal
Modern Chemical Industry
Abstract
Five new derivatives of 1,3-benzodioxole are synthesized with piperonylic acid as raw material via multistep reactions including esterification,nitration,reduction,bromination,diazotization,Sandmeyer reaction,reduction of ester,dehydration.The structures of all products are identified by 1H-NMR,ESI-MS spectra.