Convergent synthesis and characterization of organotin dendrimers Sn{(CH2)nSn[(CH2)4SnPh3]3}4 (n=3, 4)

被引：7

作者：

Schumann, Herbert ^{[1
]}

Aksu, Yilmaz ^{[1
]}

Wassermann, Birgit C. ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Chem, D-10623 Berlin, Germany

来源：

ORGANOMETALLICS | 2006年 / 25卷 / 14期

关键词：

D O I：

10.1021/om0602005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of the omega-haloalkyltin trihalides Br(CH2)(3)SnBr3 and Br(CH2)(4)SnBr3 with 3 equiv of but-3-enylmagnesium bromide yielded Br(CH2)(3)Sn(CH2CH2CH=CH2)(3) ( 3) and Br(CH2)(4)Sn(CH2CH2CH=CH2) (3) (4). Both dendritic branches can be converted into their corresponding Grignard reagents, whose consequent treatment with 0.25 M amounts of SnCl4 resulted in the formation of the dendrimers Sn[(CH2)(3)Sn(CH2CH2CH=CH2)(3)](4) (5) and Sn[(CH2)(4)Sn(CH2CH2CH=CH2)(3)](4) ( 6), respectively. The subsequent hydrostannation of 5 and 6 delivered Sn {(CH2)(3)Sn[(CH2)(4)SnPh3](3)}(4) ( 7) and Sn {(CH2)(4)Sn[(CH2)(4)SnPh3](3)}(4) ( 8) as dendrimers of the second generation. All compounds were characterized by elemental analysis, H-1, C-13, and Sn-119 NMR spectroscopy, and MALDI-TOF mass spectrometry.

引用

页码：3428 / 3434

页数：7

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