Synthesis, Characterization, and Reactivity of 1-Ethoxysilatrane

Abstract

The synthesis of four new silatranes with all six-membered rings N[CH₂(Me₂C₆H₂O)]₃SiR [3–6, 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; ¹H, ¹³C, and ²⁹Si NMR spectroscopy; and mass spectrometry. The results have been correlated with DFT studies using B3LYP basis set at 3–21G level.

Keywords:

• ethoxy silatrane
• six-membered ring silatrane
• trichloroe thoxysilane
• tris(2-hydroxy-3,5-dimethylbenzyl)amine

Acknowledgments

The authors gratefully acknowledge University Grants Commission (UGC), New Delhi for providing financial support.