Phosphine-Catalyzed Si-C Coupling of Bissilylmethanes: Preparation of Cyclic (Cl2SiCH2)2 and Linear Cl2Si(CH2SiCl3)2 via Silylene and Silene Intermediates

Title
Phosphine-Catalyzed Si-C Coupling of Bissilylmethanes: Preparation of Cyclic (Cl2SiCH2)2 and Linear Cl2Si(CH2SiCl3)2 via Silylene and Silene Intermediates
Authors
홍순현현상일정일남한원식김민혜윤호섭남석우강상욱
Keywords
Si-C coupling; phosphine; carbosilanes
Issue Date
2010-02
Publisher
Organometallics
Citation
VOL 29, NO 3, 687-691
Abstract
Cyclic and linear carbosilanes, (Cl2SiCH2)2 (2) and Cl2Si(CH2SiCl3)2 (3), were produced from phosphine-catalized Si−C coupling reactions of bissilylmethanes, HCl2SiCH2SiX1X2Cl (X1, X2 = Cl (1), X1 = H, X2 = Cl (7), and X1 = Me, X2 = Cl (8)). The formation of compounds 2 and 3 suggested competing reaction pathways, involving dichlorosilene [CH2═SiCl2] and dichlorosilylene [:SiCl2] intermediates. Each intermediate was either proposed by the product isolation of the trimerized product (3) or confirmed by trapping experiments with 2,3-dimethylbutadiene and methylene chloride.
URI
http://pubs.kist.re.kr/handle/201004/37462
ISSN
0276-7333
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KIST Publication > Article
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