1,3-Disilacyclobutanes of the types are prepared (a) by ring synthesis from chloromethylchlorosilanes R1R2Si(CH2Cl)Cl, (b) by thermolysis of monosilacyclobutanes R1R2H2CH2, and (c) by substitution of chlorine with alkyl groups in SiCl-containing 1,3-disilacyclobutanes, obtained by procedures (a) or (b). The compounds have been characterized by analytical and spectroscopic investigations. The synthetic
类型的1,3- Disilacyclobutanes被制备:(a)由环合成从chloromethylchlorosilanes - [R 1 - [R 2的Si(CH 2由monosilacyclobutanes的热分解- [R Cl)的
氯,(b)中1 - [R 2 ħ 2 CH 2,和(c)通过用步骤(a)或(b)获得的含SiCl的1,3-二
硅环丁烷中的烷基取代
氯。该化合物已通过分析和光谱研究表征。严格比较了合成方法。