Walther Luis, Radacki Krzysztof, Dewhurst Rian D, Bertermann Rüdiger, Finze Maik, Braunschweig Holger
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
Angew Chem Int Ed Engl. 2024 Jul 22;63(30):e202404930. doi: 10.1002/anie.202404930. Epub 2024 Jun 21.
Borylation of a tungsten-bound N ligand and halide abstraction provides access to a cationic complex with an unprecedented linear NNBR ligand. This complex undergoes [3+2] cycloaddition with azides, and an unexpected chain-extension reaction with an iminoborane, leading to a complex with a five-atom B/N chain. These two [NNBR]-containing complexes, inorganic analogues of E. O. Fischer's alkynylcarbynes, are very rare examples of molecules containing all-inorganic chains of sp-hybridized atoms.
钨配位的N配体的硼化反应以及卤化物的脱去反应为获得一种具有前所未有的线性NNBR配体的阳离子配合物提供了途径。该配合物与叠氮化物发生[3+2]环加成反应，并与亚氨基硼烷发生意外的链延伸反应，生成一种含有五原子B/N链的配合物。这两种含[NNBR]的配合物是E. O. 费舍尔炔基卡宾的无机类似物，是含有sp杂化原子的全无机链分子的非常罕见的例子。
