Article ID Journal Published Year Pages File Type
5216255 Tetrahedron 2014 7 Pages PDF
Abstract

A facile and versatile organocatalytic approach to access 2-substituted and 2,3-disubstituted chromone derivatives under mild conditions was developed, which was effectively catalyzed by novel proline phenylsulphonylhydrazide or pyrrolidine. As a result, diversely functionalized chromones were obtained in up to 99% yield. In addition, further modification of the corresponding chromones afforded novel polycyclic chromones.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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