Author/Authors :
Zinn، نويسنده , , Fabiano K. and Righi، نويسنده , , Vin??cius E. and Luque، نويسنده , , Silas C. and Formiga، نويسنده , , Henrique B. and Comasseto، نويسنده , , Joao V. and Gattaz، نويسنده ,
Abstract :
Olefins conjugated to electron-withdrawing groups (e.g. CHO, RCO, CO2R, CN) react rapidly with alkylselenols and tellurols generated in situ to give the corresponding β-chalcogeno aldehydes, ketones, esters and nitriles. β-Telluroketones are transformed into β-telluroketals, which are β-lithiocarbonyl synthons.