| Abstract
| - A novel potential ligand has been designed where two β-dialdimine units are linked by a xanthene backbone(H2Xanthdim). The synthesis proceeds via a double vinamidinium salt and the products of its hydrolysis(containing eneamine/malonaldehyde units), which were converted into H2Xanthdim via a reaction with2,3-dimethylaniline. The reaction of H2Xanthdim with n-butyllithium yields ((Et2O)Li)2Xanthdim, whichwas isolated and crystallized. The crystal structures of both H2Xanthdim and its lithium salt are discussed.
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