Extending distannoxane double ladders using rigid spacers: a double ladder with eight chiral tin atoms-and a twist!
| Data(s) |
01/01/2002
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| Resumo |
The new bulky silicon-containing ditin precursor <i>p</i>-(RCl<sub>2</sub>SnCH<sub>2</sub>SiMe<sub>2</sub>)<sub>2</sub>C<sub>6</sub>H<sub>4</sub> (R = CH<sub>2</sub>SiMe<sub>3</sub> (<b>4</b>)) has been synthesized and further reacted to form a unique double ladder {[<i>p</i>-(R(Cl)SnCH<sub>2</sub>SiMe<sub>2</sub>)<sub>2</sub>C<sub>6</sub>H<sub>4</sub>]O}<sub>4</sub> (<b>6</b>). The two layers within <b>6</b> are twisted with respect to one another, resulting in a helical motif and a total absence of molecular symmetry so that there are eight chiral tin atoms within the system. The structure is compared to the double ladder {[<i>m</i>-(R(Cl)SnCH<sub>2</sub>CH<sub>2</sub>)<sub>2</sub>C<sub>6</sub>H<sub>4</sub>]O}<sub>4</sub> (<b>11</b>), which was prepared from the less sterically demanding ditin precursor <i>m</i>-(RCl<sub>2</sub>SnCH<sub>2</sub>CH<sub>2</sub>)<sub>2</sub>C<sub>6</sub>H<sub>4</sub> (<b>10</b>). The two layers within <b>11 </b>are parallel, and the molecule contains only two kinds of tin atom. <br /> |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
American Chemical Society |
| Relação |
http://dro.deakin.edu.au/eserv/DU:30001561/duthie-extendingdistannoxane-2002.pdf http://dx.doi.org/10.1021/om0105627 |
| Direitos |
2002, American Chemical Society |
| Tipo |
Journal Article |
