共查询到20条相似文献,搜索用时 31 毫秒
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Wolfgang Werner 《ChemInform》2002,33(40):280-280
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Angela Münch Lorenz Weihrich Niclas Knoblauch Prof. Dr. Jürgen Seibel 《European journal of organic chemistry》2023,26(25):e202300578
The design of a versatile alkyne-bearing derivative of the donor-acceptor fluorophore 2,4,5,6-tetrakis(9H-carbazol-9-yl) isophthalonitrile (4CzIPN) suitable for further targeted modifications by copper-catalysed Azide Alkyne Cycloaddition (CuAAC) is reported. The newly synthesised photoredox catalyst notably exhibits analogously unique photoelectronic and steric features as the well-established carbazolyl dicyanobenzene motif and performs equally in a C−C-Coupling model reaction. Furthermore, the variability of this donor-acceptor system was demonstrated by the generation of a library of fourteen photoredox catalysts with electron-withdrawing and -donating groups as well as residues with high steric demands in one simple and selective CuAAC reaction. The modified catalysts feature a broad scope of reducing and oxidising powers in their excited states (span of reducing powers over more than 1 V) and were also successfully applied in the photoredox and nickel-catalysed decarboxylative cross coupling model reaction. This work represents a method to overcome the limitations in the flexibility of metal-free donor-acceptor fluorophores required for the targeted application in organic synthesis and paves the way for the design of customised catalysts with multiple functionalities. 相似文献
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Wolfgang Wener 《ChemInform》2002,33(52):263-263
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Inside Back Cover: Development of a 18F‐Labeled Tetrazine with Favorable Pharmacokinetics for Bioorthogonal PET Imaging (Angew. Chem. Int. Ed. 36/2014)
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Christoph Denk Dennis Svatunek Dr. Thomas Filip Dr. Thomas Wanek Dr. Daniel Lumpi Prof. Johannes Fröhlich Priv.‐Doz. Dr. Claudia Kuntner Dr. Hannes Mikula 《Angewandte Chemie (International ed. in English)》2014,53(36):9675-9675
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Inside Back Cover: Well‐Defined Single‐Site Monohydride Silica‐Supported Zirconium from Azazirconacyclopropane (Chem. Eur. J. 11/2015)
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Bilel Hamzaoui Dr. Mohamad El Eter Dr. Edy Abou‐hamad Dr. Yin Chen Dr. Jérémie D. A. Pelletier Prof. Jean‐Marie Basset 《Chemistry (Weinheim an der Bergstrasse, Germany)》2015,21(11):4467-4467
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