Ligand-Dependent Selective Formation of Unique Silylpalladium Complexes by the Reaction of 1-(Dimethylsilyl)-2-silylbenzene and [{1,2-C<sub>6</sub>H<sub>4</sub>(SiMe<sub>2</sub>)(SiH<sub>2</sub>)}Pd(R<sub>2</sub>PCH<sub>2</sub>CH<sub>2</sub>PR<sub>2</sub>)]
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The reaction of 1-(dimethylsilyl)-2-silylbenzene (4) and [{1,2-C6H4(SiMe2)(SiH2)}Pd(R2PCH2CH2PR2)] (6a, R = Me; 6b, R = Et) selectively afforded unique palladium complexes, depending on the phosphine ligands. For 6a, a dinuclear palladium complex with five Si−Si bonds was obtained, in which two 6a molecules were bridged by a cyclic dimer of 4 at the SiH2 silicon atom of 6a. On the other hand, 6b afforded a mononuclear palladium complex with a benzotrisilacyclopentene moiety, which was formed by two Si−Si coupling reactions between the SiH2 group of 6b and the SiH3 and SiMe2H groups of 4.
创建时间：
2010-10-11
