Synthesis of some di-and tricyclic silaalkanes

Z Teng, C Boss, R Keese

Index: Teng, Zhu; Boss, Christoph; Keese, Reinhart Tetrahedron, 1997 , vol. 53, # 38 p. 12979 - 12990

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Citation Number: 3

Abstract

The mono-, di-and spirocyclic silaalkanes 5, 6 and 9/10 are readily prepared from the di-and tetraallylsilanes 4 and 8 respectively by Cp2Zr induced ring forming reactions. The diallylsilole 16 reacts at 0° C and in presence of an excess of Cp2Zr to the tricyclic compound 19 whereas the silaspiro [4.4] nonadienes 21 and 22 are formed at room temperature. High stereoselectivity is observed in all of these Cp2Zr induced cyclization ...