copper dichloride 3 h; Ambient temperatureother Te-butyl telluroesters and Se-butyl selenoesters; other reagents;

n-butyllithium in tetrahydrofuran; diethyl ether T=-105°C; other Te-alkyl esters, other electrophiles, other order of mixing of reagents, other temperatures; Product distribution;

n-butyllithium in tetrahydrofuran; diethyl ether T=-105°C;

n-butyllithium in tetrahydrofuran; diethyl ether T=-105°C; other Te-alkyl esters, other electrophiles, other order of mixing of reagents, other temperatures; Product distribution;