876941-91-2

Upstream product

• 857444-41-8 (E)-1,2-dibromo-1,2-bis(2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl)digermene 

Downstream Products

• 876941-93-4 1,2-bis(2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl)-1,1-dimethoxydigermane 
• 876941-96-7 (((CH₃)3Si)7C₆H₂(CH)2C)GeC₆H₁₀GeHC(Si(CH₃)3)2C₆H₂CH(Si(CH₃)3)2C(Si(CH₃)3)3 
• 876941-97-8 (((CH₃)3Si)7C₆H₂(CH)2C)2(GeC₆H₁₀)2 
• 876941-95-6 (((CH₃)3Si)7C₆H₂(CH)2C)2Ge₂C₆H₁₀ 
• 876941-98-9 (((CH₃)3Si)7C₆H₂(CH)2C)2GeC₆H₁₀GeH(CH₃O) 
• 876941-94-5 1,2-bis(2,6-bis[bis(trimethylsilyl)methyl]-4-[tris(trimethylsilyl)methyl]phenyl)-1,1-dihydroxydigermane 

Relevant academic research and scientific papers

Reversible addition of terminal alkenes to digermynes

Stable digermynes with sterically demanding Bbt (Bbt = 2,6-[CH(SiMe3)2]2-4-[C(SiMe3)3]-C6H2) or Tbb (Tbb = 4-tBu-2,6-[CH(SiMe3)2]2-C6H2) groups underwent [2+2] cycloadditions with terminal alkenes to give the corresponding 1,2-digermacyclobutenes. In the case of the Bbt-substituted digermyne, the reaction was reversible at room temperature, i.e., the 1,2-digermacyclobutene (Ge(ii) species) is susceptible to a facile reductive elimination that affords the corresponding digermyne (Ge(i) species) and the alkene.

Synthesis and properties of a new kinetically stabilized digermyne: New insights for a germanium analogue of an alkyne

The reduction of an overcrowded (E)-1,2-dibromodigermene, Bbt(Br)Ge=Ge(Br)Bbt (2) [Bbt = 2,6-bis[bis(trimethylsilyl)methyl]-4- [tris(trimethylsilyl)methyl]phenyl], with KC8 afforded a stable digermyne, BbtGe≡GeBbt (1). The Ge≡Ge triple-bond characters of 1 were revealed by the X-ray crystallographic analysis and spectroscopic studies (UV/vis and Raman spectra) together with theoretical calculations. The Ge≡Ge bond lengths of the two nonidentical molecules of 1 observed in the unit cell were shorter than that of the previously reported digermyne, Ar′e≡GeAr′ (Ar′ = 2,6-Dip2C6H 3, Dip = 2,6-diisopropylphenyl).