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Synthese und Struktur des ersten oligomeren cyclischen Dimethylsilyl‐substituierten Carbodiimids
Author(s) -
Kienzle Andreas,
Aldinger F.,
Obermeyer Axel,
Simon Arndt,
Riedel Ralf
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931261202
Subject(s) - chemistry , steric effects , carbodiimide , dimethylsilane , cyanamide , isothiazole , crystal structure , molecule , stereochemistry , ring (chemistry) , polymer chemistry , crystallography , medicinal chemistry , organic chemistry
Synthesis and Structure of the First Oligomeric Cyclic Dimethylsilyl‐Substituted Carbodiimide New oligomeric cyclic silylcarbodiimides 1–3 are synthesised by the reaction of the respective dichlorosilanes with cyanamide. From the resulting reaction mixture with dichloro‐dimethylsilane the tetrameric compound of the hypothetical [(CH 3 ) 2 Si=N–CN] is isolated. In this molecule sixteen atoms build a nearly planar ring structure with a special steric arrangement of the groups. This oligomeric silylcarbodiimides present a new kind of precursors for the pyrolytic synthesis of ceramics in the ternary system SiCN.