An As2Si2, an AsSi2, and an As3 ring are all found in the tricyclic compound 1, which is accessible from Mes2SiSiMes2 (Mes = 2,4,6‐trimethylphenyl) and As4. A second product, a diarsadisilabicyclo[1.1.0]butane derivative with a butterfly structure, can also be obtained by heating 1.
Ruthenium complexes catalyse desilanative condensation of bis(trihydrosily1)benzenes to give poly[(dihydrosilylene)(phenylene)ls, a new class of organic-inorganic hybrid polymers that allow numerous transformations.
Professor Ulrich Wannugat zum 70. Geburtstug gewidmetTetramesityldisilen, Mes,Si=SiMes, 1 a (Mes = 2,4,6-Trimethylphenyl), und andere Disilene bilden rnit vielen organischen Reagentien und anorganischen Elementen neuartige heterocyclische Verbindungen", ' I. In letzter Zeit haben wir uns mit Reaktionen von Disilenen mit Elementen der 5. Hauptgruppe beschaftigt. Werden Disilene mit weiBem Phosphor (P,) umgesetzt, so entstehen interessante Verbindungen rnit Butterfly-Strukturen wie die 1,3-Diphospha-2,4-disilacycl~butane[~] 2a-c [Gl. (a)]. Wir berichten nun iiber die Ergebnisse der Reaktion von Disilen 1 a rnit Arsen (As,). la, R = 2,4,6-Me3C6H2 2a-c 1 b, R = 2,6-Me2CGH, IC, R = 2,6-Me2-4-fIBUC6H2
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