Reductive Coupling of 2,2-Dibromo-1,1,1,3,3,3-hexaalkyltrisilanes. A Novel Route to Persilylcyclotetrasilanes of the Type [(R<sup>1</sup>R<sup>2</sup>R<sup>3</sup>Si)<sub>2</sub>Si]<sub>4</sub>
作者:Hideyuki Matsumoto、Noriyasu Yokoyama、Atsushi Sakamoto、Yumiko Aramaki、Reiko Endo、Yoichiro Nagai
DOI:10.1246/cl.1986.1643
日期:1986.10.5
Persilylcyclotetrasilanes of the type [(R1R2R3Si)2Si]4 (R1 = R2 = R3 = Me; R1 = Et, R2 = R3 = Me) were readily obtained by the reductive coupling of the corresponding 2,2-dibromo-1,1,1,3,3,3-hexaalkyltrisilanes using sodium; the Si4 frameworks of these persilyl compounds act as much more intense chromophore than those of peralkyl analogues.
[(R1R2R3Si)2Si]4 (R1 = R2 = R3 = Me; R1 = Et, R2 = R3 = Me) 类型的紫苏基环四硅烷很容易通过相应的 2,2-二溴-1,1 的还原偶联获得,使用钠的1,3,3,3-六烷基三硅烷;这些全硅基化合物的 Si4 骨架比全烷基类似物具有更强的发色团。