Unexpectedly low reactivity for spirosilanes: 4-sila-spiro[3,3]heptane
Abstract
Competitive cleavages of 4-silaspiro[3,3]heptane (I), 4-silaspiro[3,5]nonane (III), and 1,1-dimethylsilacyclobutane (III) by hydrogen chloride in diethyl ether have been carried out; the unexpectedly low reactivity of (I) is discussed in terms of a model controlled by steric considerations.