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Direct Synthesis of Large-Scale Ortho-Iodinated Perylene Diimides: Key Precursors for Functional Dyes

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journal contribution
posted on 28.09.2017 by Jiajun Wu, Dezhi He, Li Zhang, Yudong Liu, Xiaogang Mo, Jianbin Lin, Hui-jun Zhang
A highly regioselective tetra-ortho-iodination reaction of perylene diimides (PDIs) has been developed, which could be conducted on a multigram scale (>10 g), featuring a column chromatography-free workup and purification. The ortho-iodinated-PDIs serve as key intermediates for the preparation of a variety of ortho-functionalized PDIs and PDI-based conjugated polymers.