Butyl, tin deriv

One synthetic route towards such derivatives is the reaction of lithium hydridodiorganylstaimides (RR Sn(H)Li) with a,o>-dichlorodiorganosilanes (Cl-(SiMe2) -Cl, n = 1-fi) yielding the bis(hydridodiorganylstannyl)oligosilanes 1 and 2 nearly quantitatively. Besides the recently published di(r-butyl)tin derivatives 1 [1] compounds with chiral tin centers (2) were also available on this reaction pathway (Eq. 1). 

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