摘要:
The synthesis of four new silatranes with all six-membered rings N[CH2(Me2C6H2O)](3)SiR [36, R = OEt (3); OCH2CH2N(Et)(2) (4); SPh (5); OOC(C5H4N) (6)] using tris(2-hydroxy-3,5-dimethylbenzyl)amine as encapsulating agent is described. Silatranes 4, 5, and 6 have been prepared by transesterifications of ethoxy silatrane 3. Structures of these silatranes have been established by elemental analyses; infrared spectroscopy; H-1, C-13, and Si-29 NMR spectroscopy; and mass spectrometry. The results have been correlated with DFT studies using B3LYP basis set at 321G level.