Iridium-Catalyzed Direct Tetraborylation of Perylene Bisimides
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https://figshare.com/articles/dataset/Iridium_Catalyzed_Direct_Tetraborylation_of_Perylene_Bisimides/2650498
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Treatment of perylene bisimides (PBIs) with bis(pinacolato)diboron in the presence of an iridium catalyst provides tetraborylated PBIs at 2,5,8,11-positions in good yields with perfect regioselectivity. The planar structure of the perylene core has been confirmed by X-ray diffraction analysis. Oxidation of tetraborylated PBI with hydroxylamine hydrochloride affords tetrahydroxy PBI in excellent yield, which exhibits a substantially blue-shifted absorption spectrum due to an intramolecular hydrogenbonding interaction between carbonyl and hydroxy groups.
创建时间:
2016-02-23



