127932-68-7

Upstream product

• 113111-20-9 1,1'-dichloro-2,3,4,5-tetramethyl-1-germacyclopenta-2,4-diene 
• 100-58-3 phenylmagnesium bromide 
• 591-51-5 phenyllithium 
• 16853-85-3 lithium aluminium tetrahydride 

Downstream Products

• 129466-91-7 1-(trimethylsilyl)-1-phenyl-2,3,4,5-tetramethylgermole 
• 129466-89-3 (1-phenyl-2,3,4,5-tetramethyl1-germacyclopentadieny)lithium 
• 127932-66-5 1-chloro-1-phenyltetramethylgermole 
• 67-66-3 chloroform 
• 129466-92-8 1-(trimethylstannyl)-1-phenyl-2,3,4,5-tetramethylgermole 

Relevant academic research and scientific papers

Synthese de germoles par reaction de transmetallation (Groupe 4 (groupe 14))

The transmetallation reaction of group 14 metallacyclopentadienes, Cp2EC4R'4 (E = Ti, Zr, Hf; R' = Ph, Me) with various halogermanes has been studied.The tetrahalides GeCl4 and GeBr4 undergo the E/Ge exchange reaction at room temperature, but the trihalides RGeCl3 and dihalides R2GeCl2 (R = Me, Ph) are less reactive.Some germoles were found to be unstable.A phenyl group on the germanium atom stabilizes the 2,3,4,5-tetramethylgermoles with a Ge-H (HPhGeC4Me4) or Ge-Cl bond (ClPhGeC4Me4).

C-methylated (germacyclopentadienyl)lithium

1-Phenyl-2,3,4,5-tetramethyl-1-germacyclopentadienyl)lithium (4) was prepared by reaction of 1-phenyl-2,3,4,5-tetramethylgermole with n-butyllithium in THF/hexane at -70??C and chemically identified by electrophilic silylation and stannylation. A 13C NMR suggests that the negative charge in 4 is strongly localized on the germanium atom.