Beschreibung:
<jats:title>Abstract</jats:title><jats:p>The synthesis of 1,3‐diphenyldisiloxane (<jats:bold>1</jats:bold>) by hydrolysis of chloro(phenyl)silane is optimized, 1,3‐diphenyldisilthiane (<jats:bold>2</jats:bold>) is made available by the reaction of H<jats:sub>2</jats:sub>S with PhH<jats:sub>2</jats:sub>SiCl and triethylamine. 1,3‐Diphenyldisilselenane (<jats:bold>3</jats:bold>) is prepared from K<jats:sub>2</jats:sub>Se and PhH<jats:sub>2</jats:sub>SiBr. Selective ammonolysis of PhH<jats:sub>2</jats:sub>SiBr leads either to bis(phenylsilyl)amine (<jats:bold>4</jats:bold>) or to tris(phenylsilyl)amine (<jats:bold>5</jats:bold>). (Phenylsilyl)bis(trimethylsilyl)amine (<jats:bold>6</jats:bold>) is prepared by the reaction of 1,1,1,3,3,3‐hexamethyldisilazane with chloro(phenyl)silane and triethylamine. According to a crystal structure determination the molecule of <jats:bold>6</jats:bold> features a planar Si<jats:sub>3</jats:sub>N skeleton. Phenylsilylated phosphonium methylides are available by two synthetic pathways: Transsilylation of phosphonium (trimethylsilyl)methylides and direct silylation of unsubstituted phosphonium methylides R<jats:sub>3</jats:sub>P = CH<jats:sub>2</jats:sub>. The structure of the molecule Me<jats:sub>3</jats:sub>P = C(SiH<jats:sub>2</jats:sub>Ph)<jats:sub>2</jats:sub> (<jats:bold>11</jats:bold>) in the crystal also exhibits a virtually planar PCSi<jats:sub>2</jats:sub> skeleton, isoelectronic with Si<jats:sub>3</jats:sub>N.</jats:p>