3,4-benzo-1 -silacyclobutenes

Keywords silacyclobutanes, pyrolysis, silenes, rearrangement, 3,4-benzo-1-silacyclobutenes, 2-silaindanes, B3LYP/6-31G calculations... 

A pseudo-silacyclobutene derivative, 2 3-benzo-l,l-diphenyl-l-silacyclobut-2-ene, was prepared by three independent synthetic procedures, and was found to exhibit the high reactivity of silacyclobutanes. The facile ring openings observed with this pseudo-silacyclobutene are... 

As was shown in [82], l,l-dimethyl-2,3-benzo-l-silacyclobutene exhibited an extremely high activity in polymerization. This highly strained monomer was so active that its TROP proceeded even at 60°C. 

Concluding the section devoted to the catalytic polymerization of 2,3-benzo-1-silacyclobutenes in the presence of Pt-containing compounds, we would like to note two examples of PtCl2- or Pt(l,5-cod)2-catalyzed copolymerization of... 

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