Generation of stannabenzenes and their monomer?dimer equilibration
Generation of stannabenzenes and their monomer?dimer equilibration
复制标题
锡苯的生成及其单体、二聚体平衡
DOI：
10.1039/c8dt02994f
复制
发表时间：
2018
影响因子：
4
通讯作者：
Tokitoh Norihiro
中科院分区：
文献类型：
--
作者：
Mizuhata Yoshiyuki;Fujimori Shiori;Noda Naoya;Kanesato Shuhei;Tokitoh Norihiro
锡苯由于其高反应活性至今尚未被分离。为了合成和分离稳定的锡苯，我们在锡原子上引入了Tbt（2，4，6-三[双（三甲基硅基）甲基]苯基）或Bbt（2，6-双[双（三甲基硅基）甲基]-4-[三（三甲基硅基）甲基]苯基），并在锡苯的2-位引入了叔丁基。发现这种空间保护基团的组合在一定程度上抑制锡苯的二聚化，得到相应的锡苯及其二聚体的平衡混合物。
Stannabenzene has not been isolated so far because of its high reactivity. In order to synthesize and isolate a stable stannabenzene, we have introduced two steric protection groups, the Tbt (2,4,6-tris[bis(trimethylsilyl)methyl]phenyl) or the Bbt (2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl) group on the tin atom and the t-butyl group on the 2-position, to the stannabenzene skeleton. Such a combination of steric protection groups was found to suppress the dimerization of stannabenzene to some extent, giving an equilibrated mixture of the corresponding stannabenzene and its dimer.