Preparation of Axially Chiral (Racemic) Spirosilanes and Spirogermanes by Selective Spirozirconation

Abstract

Chiral (racemic) functional spirosilanes or -germanes, containing two (or four) stereogenic centers, were synthesized by selective cyclozirconation (or spirozirconation) of di- and tetraallylsilanes and di- and tetraallylgermanes.