名称:
VOM IMINOSILAN ZUM SILYL-AMINOALAN,–ETHER,–ETHIN, 1,3-DIAZA-2-SILACYCLOBUTEN UND 1-AZA-2-SILA-TRITHIACYCLOPENTAN
摘要:
Lithiated di(tert.-butyl)fluorosilyl-di(tert.-buty)methylsilylamine crystallizes from n-hexane in the presence of pyridine (9) or triethylamine (10) with formation of (SiFLiN)-four-membered rings (9, ill): The crystal structure of 10 shows that 10 can be interpreted as LiF-adduct of an iminosilane. The thf-adduct of the same iminosilane (6), (Me3C)(2)Si(thf) = NSi(CMe3)(2)Me, reacts with Me2CHOH (11); C6H5C=CH (12), H2O (13), Me2C=O (15, 16) with formation of a silylether (11), silylethine (12), siloxane (13), isopropenyl-oxisilylamines (15, 16). A (2+2) cycloaddition occurs in the reaction of 6 with Me3SiC=N. A (Si-N-C=N)-four-membered ring (17) is obtained. The reaction between 6 and AlMe3 affords the monomeric aminodimethylalane 18 by a nucleophilic methanide-ion migration from aluminum to silicon. The 1-aza-2-sila-3,4,5-trithiathiarane 19 is obtained in the reaction of the iminosilane 7 with methylthiirane. The crystal structures of the LiF-adduct 10, the siloxanes 13, 14 and the five-membered ring 19 are presented.