ISSN:
0009-2940
Schlagwort(e):
Disiloxanes
;
Disilthianes
;
Disilselenanes
;
Phosphonium methylides
;
Chemistry
;
Inorganic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The synthesis of 1,3-diphenyldisiloxane (1) by hydrolysis of chloro(phenyl)silane is optimized, 1,3-diphenyldisilthiane (2) is made available by the reaction of H2S with PhH2SiCl and triethylamine. 1,3-Diphenyldisilselenane (3) is prepared from K2Se and PhH2SiBr. Selective ammonolysis of PhH2SiBr leads either to bis(phenylsilyl)amine (4) or to tris(phenylsilyl)amine (5). (Phenylsilyl)bis(trimethylsilyl)amine (6) 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 6 features a planar Si3N skeleton. Phenylsilylated phosphonium methylides are available by two synthetic pathways: Transsilylation of phosphonium (trimethylsilyl)methylides and direct silylation of unsubstituted phosphonium methylides R3P = CH2. The structure of the molecule Me3P = C(SiH2Ph)2 (11) in the crystal also exhibits a virtually planar PCSi2 skeleton, isoelectronic with Si3N.
Zusätzliches Material:
2 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/cber.19921250512
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