1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol and its organotin derivatives.: Model compounds for diphenylsiloxane polymer

被引：20

作者：

Beckmann, J

Jurkschat, K ^{[1
]}

Müller, D

Rabe, S

Schürmann, M

机构：

[1] Univ Dortmund, Fachbereich Chem, Lehrstuhl Anorgan Chem 2, D-44221 Dortmund, Germany

[2] Inst Angew Chem, D-12484 Berlin, Germany

来源：

ORGANOMETALLICS | 1999年 / 18卷 / 12期

关键词：

D O I：

10.1021/om990107z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The hydrolysis of the spirotitanasiloxane Ti[(OSiPh2)(4)O](2) provides 1,1,3,3,5,5,7,7-octaphenyl-1,3,5,7-tetrasiloxane-1,7-diol, H(OSiPh2)(4)OH (1), in high yield. The reaction of 1 with tricyclohexyltin hydroxide, cyclo-Hex(3)SnOH, and di-tert-butyltin oxide, cyclo-(t-Bu2SnO)(3), respectively, gives 1,1,3,3,5,5,7,7-octaphenyl-1,7-tricyclohexylstannyl-1,3,5,7-tetrasiloxane (cyclo-Hex(3)SnOSiPh(2)OSiPh(2))(2)O (2), and 1,1-di-tert-(butyl-3,5,7,9-octaphenyl-2, 4,6,8,10-pentaoxa-,3,5,7,9-tetrasila-1-stannacyclododecane, cyclo-t-Bu2Sn(OSiPh2OSiPh2)(2)O (3). The molecular structures of 1 and 2 were determined by X-ray diffraction. In both compounds the central Si-O-Si angle amounts to 180 degrees. Remarkably, no hydrogen bonding is observed for 1.

引用

页码：2326 / 2330

页数：5

共 39 条

[1] On the reaction of [Ph-2(OH)Si](2)O with t-Bu2SnCl2: synthesis and characterization of the first well defined polystannasiloxane [(t-Bu2SnO)(Ph2SiO)(2)](n) [J].