From Tetramethoxy or Hexamethoxy Tellurium

Tetramethoxy tellurium and hexamethoxy tellurium reacted with 2,2 -dilithiobiphenyl to give bis[2,2 -biphenyldiyl] tellurium A tris[2,2 -biphenyldiyl] tellurium was not detected. 

2 -hiphenyldiyl] Tellurium A solution of 66.4 mmol of 2,2 -dilithiobiphenyl in 250 ml of anhydrous diethyl ether is prepared from 26.9 g (66.4 mmol) of diiodobiphenyl and 132.8 mmol of butyl lithium and cooled to — 70°. 8.17 g (32.5 mmol) of tetramethoxy tellurium are dissolved in 300 ml of anhydrous diethyl ether and this solution is added dropwise to the cooled, stirred solution of 2,2 -dilithiobiphenyl. The resultant mixture is allowed to warm to 20° and is then heated under reflux for 60 h. The mixture is cooled to — 15° and unreacted lithium compound is destroyed by addition of methanol. The precipitate is collected, washed with water and then with diethyl ether yield 6.9 g (49%) m.p. 205-213° (dec. from tetrahydrofuran). 

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