862062-13-3Relevant academic research and scientific papers
Bis-, tris- and tetrakis(lithiomethyl)germanes: New building blocks for organogermanium compounds
Strohmann, Carsten,Wack, Eric
, p. 1570 - 1578 (2004)
Bis(lithiomethyl)germanes, R2Ge(CH2Li)2, tris(lithiomethyl)germanes, RGe(CH2Li)3, and tetrakis(lithiomethyl)germane, Ge(CH2Li)4, were prepared by the reductive C-S bond cleavage with lithium naphthalenide (LiC 10H8) or lithium p,p′-di-tert-butylbiphenylide (LiDBB) and characterized by trapping with Bu3SnCl. The bis(lithiomethyl)germanes were used for the synthesis of 1,1-dimethyl-3,3- diphenyl-1-germa-3-silacyclobutane, 1,1 -diethyl-3,3-diphenyl-1-germa-3- silacyclobutane, 1,1,3,3-tetraphenyl-1-germa-3-silacyclobutane and 1,1,3,3-tetraphenyl-1,3-digermacyclobutane. The single-crystal X-ray diffraction studies of methyltris(phenylthiomethyl)germane and tetrakis(phenylthiomethyl) germane, starting materials for the corresponding poly(lithiomethyl)germanes, indicate tetrahedrally arranged substituents at the germanium atoms.
