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Issue 27, 2010
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Facile synthesis of dichlorosilane by metathesis reaction and dehydrogenation of dihydrogermane by a frustrated Lewis pair

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Abstract

The reaction of GeCl2·dioxane with 1,4-diazabutadiene compounds [(HC[double bond, length as m-dash]NAr)2, Ar = 2,6-iPr2C6H3, (1); Ar = 2,4,6-Me3C6H2, (2)] leads to the formation of dichlorogermane derivatives [{N(2,6-iPr2C6H3)CH}2]GeCl2 (3) and [{N(2,4,6-Me3C6H2)CH}2]GeCl2 (4) respectively. The reaction of compound 2 with SiCl2·NHC (NHC = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidine) (5) results in the formation of dichlorosilane [{N(2,4,6-Me3C6H2)CH}2]SiCl2 (6) which is the precursor for the synthesis of N-heterocyclic silylene. Furthermore the reaction of dichlorogermane 3 with two equivalents of AlH3·NMe3 in toluene leads to the dihydrogermane [{N(2,6-iPr2C6H3)CH}2]GeH2 (7). Interestingly this dihydrogermane (7) is dehydrogenated by the frustrated Lewis pair, N-heterocyclic carbene (1,3-di-tert-butylimidazol-2-ylidene) and tris(pentafluorophenyl)borane, to form the N-heterocyclic germylene [{N(2,6-iPr2C6H3)CH}2]Ge (8).

Graphical abstract: Facile synthesis of dichlorosilane by metathesis reaction and dehydrogenation of dihydrogermane by a frustrated Lewis pair

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Publication details

The article was received on 04 Feb 2010, accepted on 07 May 2010 and first published on 03 Jun 2010


Article type: Paper
DOI: 10.1039/C002395G
Dalton Trans., 2010,39, 6217-6220

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    Facile synthesis of dichlorosilane by metathesis reaction and dehydrogenation of dihydrogermane by a frustrated Lewis pair

    A. Jana, G. Tavčar, H. W. Roesky and C. Schulzke, Dalton Trans., 2010, 39, 6217
    DOI: 10.1039/C002395G

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