Wurtz reductive coupling

R. G. Jones and S. Holder, Synthesis of polysilanes by the Wurtz reductive coupling reaction , in Reference 4, pp. 353-374. 

Figure 11.2. Molecular weight distribution of poly(methylphenylsilane) prepared by a Wurtz reductive-coupling in boiling toluene (Reprinted with permission from Organometallics, 1998, 17, 59. Copyright 1998 American Chemical Society).

Jones, R. G. Holder, S. J. Synthesis of Polysilanes by the Wurtz Reductive-Coupling Reaction. In Silicon-containing Polymers The Science and Technology of Their Synthesis and Applications Jones, R. G., Ando, W., Chojnowski, J., Eds. Kluwer Academic Publishers Dordrecht, The Netherlands, 2000 pp 353-373. 

Wurtz-type metal-mediated reductive coupling of dihalosilanes 557... 

TABLE 5. Representative examples for the preparation of poly(dialkyl)stannanes by Wurtz-type coupling A, Sml2-induced reduction B, electrochemical reduction C and dehydrogenative coupling D... 

Polysilylenes are usually prepared by the Wurtz-type reductive coupling of dichlorosilanes with alkali metals. 

Marton, D., Tari, M. Wurtz-type reductive coupling reaction of primary alkyl iodides and haloorganotins in cosolvent/H20(NH4CI)/Zn media as a route to mixed alkylstannanes and hexaalkyidistannanes. J. Organomet. Chem. 2000, 612, 78-84. 

Jones et al. prepared poly(methylphenylsilylene) (p(MPSi)) using a Wurtz-type reductive coupling reaction, followed by reaction with (4-chloromethyl-phenylethyl) dimethylchlorosilylene to produce the a,co-difunctional ATRP initiator [240]. H NMR characterization indicated the presence of several different types of chains ends however, the majority of them appeared to contain the... 

Reductive coupling of trimethylsUyl chloride and 1,4-disilylation of benzene. (MejSi)2 is formed in 89.9% yield by the Wurtz coupling. Using 4,4 -di-/-butyl-biphenyl as an electron-transfer agent, the sonochemical reaction with benzene gives 3,6-bistrimethylsilyl-l,4-cyclohexadiene almost quantitatively. 

The synthesis of polysilanes by the Wurtz-type reductive-coupling reaction is shown in Scheme 11.6. It is applicable to the synthesis of any polysilane, the substituents of which can withstand the harsh reaction conditions. This limits the systems to ones with aUcyl, aryl, silyl, fluoroalkyl, and ferrocenyl substituents but other structures are accessible through post-polymerization chemistry. ... 

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