Intramolecularly donor-stabilized silenes: Part 5. Generation and conversion of 1-[2,6-bis(alkoxymethyl)phenyl]- and 1-(8-alkoxynaphthyl)-1,2,2-tris(trimethylsilyl)silenes
作者:Constantin Mamat、Martin Mickoleit、Helmut Reinke、Hartmut Oehme
DOI:10.1016/j.jorganchem.2004.01.036
日期:2004.5
methyl]-2,2,2-trimethyldisilane (11); and 12a–d underwent spontaneous conversions and formed two types of substituted 2-oxa-1-silaindane derivatives (13a,b and 14b–d). Whereas silenes with an intramolecular amine coordination are thermally stable compounds which can be isolated, the intramolecular coordination of an ether group to the electrophilic silene silicon atom does not provide a comparable
1-(8-甲氧基-1-萘基)-1,2,2-三(三甲基甲硅烷基)甲硅烷基(10)和1- [2,6-双(烷氧基甲基)苯基] -1,2,2-三(三甲基硅烷基)硅烯(12A - d)由(二氯甲基)三(三甲基硅烷基)硅烷(的反应所产生的1)与8-甲氧基-1- naphthyllithium两个摩尔当量或2,6-双(烷氧基甲基)苯基(图8a - d),但被证明是不稳定的。用过量的应用的萘基锂试剂截留10,得到1,1-双(8-甲氧基-1-萘基)-1- [双(三甲基甲硅烷基)甲基] -2,2,2-三甲基乙硅烷(11);和12a - d进行自发转化并形成两种类型的取代的2-oxa-1-silaindane衍生物(13a,b和14b - d)。尽管具有分子内胺配位的硅烯是可以分离的热稳定化合物,但醚基与亲电子硅硅原子的分子内配位不能提供与SiC体系相当的稳定性,并且将生成的各个衍生物转化为产物产品。