Silylene and Disilene Additions to an Octa-1,3,5,7-tetrayne: Formation of a C−C-Linked Quatersilirene1,2
Silylene and Disilene Additions to an Octa-1,3,5,7-tetrayne: Formation of a C−C-Linked Quatersilirene1,2
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亚硅基和二硅烯添加到 Octa-1,3,5,7-四炔中：形成 C−C 连接的季硅烯 1,2
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
H. Marsmann
中科院分区：
文献类型：
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作者：
D. Ostendorf;A. Saak;M. Weidenbruch;H. Marsmann
由六叔丁基环三硅烷光解产生的四叔丁基二硅烯和二叔丁基亚硅烯（1）与1，8-二叔丁基辛-1，3，5，7-四炔反应，通过将1加成到所有C-C三键，得到具有末端炔基7的C-C连接的双（二硅杂环丁烯）衍生物和季硅烯8。在长时间照射后，8部分重排为具有末端硅烯基团9的2，5-二硅杂双环[2.2.0]己-1（6），3-二烯。通过X射线晶体学测定了7、8和9的结构。
Tetra-tert-butyldisilene and di-tert-butylsilylene (1), generated by photolysis of hexa-tert-butylcyclotrisilane, react with 1,8-di-tert-butylocta-1,3,5,7-tetrayne to furnish a C−C-linked bis(disilacyclobutene) derivative with terminal alkynyl groups 7 and a quatersilirene 8 by addition of 1 to all C−C triple bonds. Upon prolonged irradiation, 8 rearranges partly to the 2,5-disilabicyclo[2.2.0]hexa-1(6),3-diene with terminal silirene groups 9. The structures of 7, 8, and 9 were determined by X-ray crystallography.