Synthesis and Characterization of Silicon-Based Group 14 Dendrimers Si{(CH<sub>2</sub>)<sub>2</sub>Sn[(CH<sub>2</sub>)<sub>4</sub>MPh<sub>3</sub>]<sub>3</sub>}<sub>4</sub> (M = Ge, Sn)
作者:Herbert Schumann、Yilmaz Aksu
DOI:10.1021/om060853l
日期:2007.1.1
hydrogermylation of Si(CHCH2)4 with Ph3GeH yielded Si(CH2CH2GePh3)4 (1). In contrast, Sn(CHCH2)4 and Sn(CH2CHCH2)4 reacted with Ph3GeH under the same conditions, forming Ph3Ge(CH2)2GePh3 (2) and Ph3Ge(CH2)3GePh3 (3), respectively, whereas the reaction of Sn(CH2CH2CHCH2)4 and Ph3GeH afforded the expected tin-based metallodendrimer Sn[(CH2)4GePh3]4 (4). The reactions of Si[(CH2)2SnBr3]4 with the Grignard reagents
Si(CH CH 2)4与Ph 3 GeH的催化加氢锗化反应生成Si(CH 2 CH 2 GePh 3)4(1)。相反,Sn(CH CH 2)4和Sn(CH 2 CH CH 2)4在相同条件下与Ph 3 GeH反应,形成Ph 3 Ge(CH 2)2 GePh 3(2)和Ph 3 Ge(CH)2)3个GePh如图3(3)所示,而Sn(CH 2 CH 2 CH CH 2)4和Ph 3 GeH的反应提供了预期的锡基金属树枝状聚合物Sn [(CH 2)4 GePh 3 ] 4(4)。Si [(CH 2)2 SnBr 3 ] 4与格氏试剂RMgBr(R = CH CH 2,CH 2 CH CH 2,(CH 2)2 CH CH 2))生成Si [(CH 2)2 Sn(CH CH 2)3 ] 4(5),Si [(CH 2)2 Sn(CH 2 CH CH 2)3 ] 4(6)和Si [(CH 2)2 Sn(CH