Germyl derivatives

Treatment of the chloride 142a with 5% solution of KOH in methanol followed by neutralization with citric acid gave germanol MeC(0)N(Me)CH2GeMe20H. In the case of bis-germyl derivative 142d the product of heterocyclization 151 was obtained (equation 38)485. 

The interaction of germyl carbodiimides with weak protic acids, for example, CH3OH and HjE (E = O, Se), provides useful synthetic routes to the production of a variety of germyl derivatives, namely, GeHaOCHa and (GeHa)2E. The advantage of this type of reaction is that the only other product is a nonvolatile white solid that has been described as a polymerized cyanamide of the form (H2NCN) . >3... 

Yamamoto reported that trapping of a hthium enolate, derived from 3-methyl-2-butenoate, wifh MesGeX selectively gave a-germylated derivative (2) (Scheme 11.5) [17]. Trapping with Mf. SifJ or BujSnGl afforded O-silylated product (3) or y-stan-nylated compound (4) respectively. 

The complex rra j -[Pt(H)I(PEt3)2] reacts with silylamines, silylphosphines, and analogous germyl derivatives to give four-co-ordinate silyl or germyl derivatives of platinum(ii). However, the mechanism is not one of simple substitution, but rather involves oxidative addition to give a six-co-ordinate platinum(iv) species and subsequent reductive elimination. ... 

Campion BK, Heyn RH, Tilley TD (1993) Synthesis and reactirais of silyl and germyl derivatives of scandocene. Structure of Cp2Sc[Si(SiMe3)3](THF). Oiganometallics 12 2584... 

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