作者:Takahiro Sasamori、Yoshimitsu Arai、Nobuhiro Takeda、Renji Okazaki、Norihiro Tokitoh
DOI:10.1246/cl.2001.42
日期:2001.1
Deselenation of a 1,3,5-triselena-2,4,6-tristibane bearing 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl (denoted as Tbt) groups in the presence of 1,3-butadienes resulted in the formation of the corresponding [1 + 4]-cycloadducts of a sterically hindered stibinidene (Tbt-Sb:), a monovalent species of antimony. Thermal generation of the stibinidene from the stibolene derivatives via retro [1 + 4]-cycloaddition reaction was suggested by the diene-exchange reaction in thermolysis of the adducts in the presence of another butadiene derivative.
在存在1,3-丁二烯的情况下,1,3,5-三硒-2,4,6-三溴苯酯(标记为Tbt)去硒反应,生成了相应的[1 + 4]-环加成物,这是一种空间位阻较大的反苯基物种(Tbt-Sb:),即单价锑。根据在另一种丁二烯衍生物存在下,加成物的热解反应中的二烯交换反应,推测通过逆[1 + 4]-环加成反应从苯基衍生物中热生成反苯基物种。