Triethoxysilane, tetraethoxysilane and hexaethoxydisiloxane - Three complementary reagents for the synthesis of hydrogen-rich silylarenes

Article abstract of DOI:10.1515/znb-2004-0206

Triethoxysilane HSi(OEt)₃, tetraethoxysilane Si(OEt) ₄ and hexaethoxydisiloxane Si₂O(OEt)₆ have been probed as reagents for the synthesis of hydrogen-rich silyl-arenes Ar(SiH₃)_n. A large set of new silyl-arenes, varying in their substitution patterns and grades, have been prepared. The results establish the two new silylating agents HSi(OEt)₃ and Si ₂O(OEt)₆ as particularly useful alternatives to Si(OEt)₄. The products, which include trihydrosilyl-substituted methylbenzenes, naphthalenes and ferrocenes, have been characterized by NMR and IR spectroscopy, mass spectrometry and single crystal X-ray diffraction.