Silane, vinyltrimethyl

Stereoselective 1,3-dipolar cycloaddition of nitrones.1 The cycloaddition of the nitrone 1 with an electron-rich alkene such as ethyl vinyl ether or vinyltrimethyl-silane provides a regioselective route to 3,5-disubstituted isoxazolidines (2) (12, 566), but with low stereoselectivity. 

Some results regarding thermal decomposition of various vinyl polymers from this group are summarized in Table 6.5.10. The polymer list includes poly(ferf-butyl-N-vinyl carbamate), poly(N-vinylcarbazole), two halogenated poly(N-vinylcarbazoles), two poly(vinylpyridines), and poly(vinyltrimethyl-silane). 

Allyltrimethylsilane undergoes bimolecular rearrangement to vinyltrimethyl-silane and Me4Si through initial Si—C homolysis. The degree of vinylation of vinyltrichlorosilane is determined by the solvent, monosubstitution dominating in hydrocarbon solvents. Tetrakis(trimethylsilyl)ethylene has been prepared from the disilacyclobutene (8). The steric hindrance in such substituted ethylenes. 

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