Alkylidene Diorgano Tellurium Compounds

2 -biphenyldiyl] tellurium and at least four equivalents of butyl lithium react to give tetrabutyl tellurium. Butyl triphenyl tellurium is similarly converted to tetrabutyl tellurium  

Most of the diorgano alkylidene tellurium compounds thus far reported derive their alkylidene group from 5,5-dimethyl-l,3-dioxocyclohexane. These diorgano cyclohexyl-idene tellurium compounds are colorless, crystalline substances that are stable at 20° and readily soluble in benzene, carbon tetrachloride, and dichloromethane Single crystal X-ray dilfraction showed that the tellurium atom in bis[4-methoxyphenyl] 5,5-dimethyl-l,3-dioxo-2,2-cyclohexylidene tellurium occupies the apex of a trigonal pyramid.  

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V. Tetraorgano Tellurium, Alkylidene Diorgano Tellurium Compounds, and Hexaorgano Telluriums... 

K. J. Irgolic Tetraorgano, Alkyliden Diorgano, Hexaorgano Tellurium Compounds... 

Diorgano tellurium oxides and organic compounds with an activated methylene group condensed in chloroform1 or benzene2 to produce diorgano alkylidene tellurium compounds. 

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