A new route to incompletely-condensed silsesquioxanes: base-mediated cleavage of polyhedral oligosilsesquioxanes

被引：119

作者：

Feher, FJ ^{[1
]}

Terroba, R ^{[1
]}

Ziller, JW ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

CHEMICAL COMMUNICATIONS | 1999年 / 22期

关键词：

D O I：

10.1039/a906242d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Readily available R8Si8O12 frameworks react selectively with aqueous Et4NOH to afford discrete incompletely-condensed silsesquioxanes: reaction of R8Si8O12 (2a, R = c-C6H11; 2b, R = Bu-i) with Et4NOH first produces endo-D-2-R8Si8O11(OH)(2) (3a, R = c-C6H11; 3b, R = Bu-i), which reacts further with Et4NOH to produce endo-C-2-R8Si8O10(OH)(4) (5a and 5b) and endo-C-3-R7Si7O9(OH)(3) (4a, R = c-C6H11; 4b, R = Bu-i); the reactions of Et4NOH with Me8Si8O12 (2c), (c-C6H11)(7)(H)Si8O12 (2d) and (c-C6H11)(7)(OH)Si8O12 (2d) also produce the corresponding trisilanols (i.e. endo-C-3-R7Si7O9(OH)(3) (4a, R = c-C6H11; 4c, R = Me).

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页码：2309 / 2310

页数：2

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