✦ LIBER ✦

Structural effects in electrophilic aliphatic substitution reactions of organosilanes

✍ Scribed by Glen A. Russell; K.L. Nagpal

Publisher: Elsevier Science
Year: 1961
Tongue: French
Weight: 171 KB
Volume: 2
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)71743-6

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✦ Synopsis

THE metal halide-catalyzed disproportionation of substituted tetraalkyl-2 RSi(CH3)3 A12Br6+ Si(CH3)4 + R2Si(CH3)2 silanes is considered to involve electrophilic substitution on carbon and nucleophilic substitution on silicon.

2 The transition state is pictured as:

We have measured the initial rates of the forward step in the disproportionation of a number of alkyltrimethylsilanes in benzene solution at 40' by methods described previously.

2 Table 1 lists the relative rates of reaction observed for identical concentrations of reactants.

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