The addition of THF solutions of
t
BuMgCl
to SnCl4 in varying solvents (S) results in a dramatic
change of the predominant product obtained Cl(
t
Bu2Sn)
n
Cl (n = 1–3). For S = THF the product obtained
was
t
Bu2SnCl2, S
= toluene, benzene yields Cl(
t
Bu2Sn)2Cl, while for S = hexane the tristannane Cl(
t
Bu2Sn)3Cl was isolated in 45%
yield. The last compound is photochemically sensitive when irradiated
at 350 nm to form Cl(
t
Bu2Sn)2Cl. Irradiation of this latter material with a 254 nm lamp
results in the formation of
t
Bu2SnCl2.
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