Novel Synthesis and Bridgehead Functionalization of Permethylbicyclo[2.2.2]octasilane
作者:Wataru Setaka、Natsuki Hamada、Mitsuo Kira
DOI:10.1246/cl.2004.626
日期:2004.5
Selective bridgehead chlorination of permethylbicyclo-[2.2.2]octasilane 1 giving the corresponding 1-chloro- (2a) and 1,4-dichlorobicyclooctanes 3a was achieved using BCl 3 in chloroform. 1-Chlorobicyclooctane 2a resists the reactions with various nucleophiles such as phenyllithium and lithium aluminum hydride but reacts with KC 8 affording the corresponding silylpotassium 2b in quantitative yield
Intramolecular charge-transfer fluorescence of 1-phenyltridecamethylbicyclo[2.2.2]octasilane
作者:Wataru Setaka、Natsuki Hamada、Chizuko Kabuto、Mitsuo Kira
DOI:10.1039/b505109f
日期:——
1-Phenyltridecamethylbicyclo[2.2.2]octasilane (1) is prepared by the reaction of the corresponding 1-chlorotridecamethylbicyclo[2.2.2]octasilane with phenyllithium in the presence of N,N,N′,N′-tetramethylethylenediamine and the molecular structure of 1 is determined by X-ray crystallography. Phenyloligosilane 1 shows dual fluorescence even in non-polar hexane though the TICT-like mechanism is not applicable.