Pillar-shaped organostannoxanes with the first triple-ladder structure of type A are obtained in almost quantitative yield by reaction of the tritin compound [RCl2Sn(CH2)3]2SnCl2 with (tBu2SnO)3. In contrast, treating [RCl2Sn(CH2)3]2SnCl2SiMe with (tBu2SnO)3 affords an organostannoxane with a folded double-ladder structure. R CH2SiMe3.
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Mehring et al. (1997) studied this question.
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