On Desilylation of 13-Vertex Carborane 1,2-Me_(2)Si(CH_(2))_(2)-1,2-C_(2)B_(11)H_(11)  

作　　者：Jian Zhang Zuowei Xie 

机构地区：[1]Department of Chemistry,The Chinese University of Hong Kong,Shatin,New Territories,Hong Kong,China

出　　处：《Chinese Journal of Chemistry》2014年第8期777-782,共6页中国化学（英文版）

基　　金：The work described in this paper was supported by grants from the Research Grants Council of the Hong Kong Special Administration Region(Nos.404610 and CUHK7/CRF/12G).

摘　　要：The reasons for facile double desilylation of 13-vertex carborane 1,2-Me_(2)Si(CH_(2))_(2)-1,2-C_(2)B_(11)H_(11)(2)are discussed in this article.New 13-and 14-vertex ruthenacarboranes bearing the same-CH_(2)SiMe_(2)CH_(2)-linkage have been prepared and structurally characterized for comparison.Structural analyses of 13-and 14-vertex heteroboranes as well as control experiments suggest that the facile double desilylation of 2 on silica gel can be attributed to the joint actions of several factors involving the high ring-strain of exo five-membered C_(4)Si ring,Lewis acidity of Si atom and Brønsted acidity of silica surface.

关 键 词：cage compounds CARBORANES cluster compounds DESILYLATION ruthenacarboranes 

分 类 号：O62[理学—有机化学]