作者:Nils Wiberg、Hubert Köpf
DOI:10.1016/0022-328x(86)80406-5
日期:1986.11
Silaethene Me2SiC(SiMe3)3 (1), unstable at −100°C with regard to dimerization, forms an adduct Me2SiC(SiMe3)2 · NMe3 (1 and NME, and can, therefore, serve as a source of 1. With 1 as an intermediate, the adduct 3 reacts with butadiene, cyclopentadiene, 2,3-dimethylbutadine, Ph2CNSiMe3, tBuN3, isobutene or acetone giving either cycloadducts or ene reaction products. Adduct 3 reacts with ROH (R =
Silaethene我2 SiC(森达3)3(1),在-100℃下对于二聚化不稳定的,形成的加合物我2 SiC(森达3)2 ·NME 3(1和NME,并且可以因此,作为源1,随着1作为中间,加合物3种发生反应与丁二烯,环戊二烯,2,3- dimethylbutadine中,Ph 2 CNSiMe 3,吨BUN 3,异丁烯或丙酮给予任一cycloadducts或烯反应产品加合物3与ROH(R = H,Me,t Bu,Ph)反应生成插入产物,可能是通过3的质子加合物,而不是通过1。以NMe 3为例的其他供体(D)形成加合物1 ·D,产生了新型的硅化合物。作为d的路易斯碱度,相对于1,减小(F - ρNME 3 ρ净3 ρ溴- ρTHF),向加合物的分解电阻1 d·到的二聚体1和d也降低。