K. Omote et al., CHEMOSELECTIVE REACTIONS OF TELLURIUM TETRAETHOXIDE TOWARDS THIOAMIDES AND AMIDES, Bulletin of the Chemical Society of Japan, 67(6), 1994, pp. 1759-1761
Tellurium tetraethoxide reacts with primary thioamides at room tempera
ture, forming nitriles in high yields. On the other hand, the reaction
s with amides are largely temperature-dependent, giving predominantly
esters at 80-degrees-C and nitriles at a higher temperature. Similarly
, tellurium tetraethoxide readily induces the C-N bond cleavage of ure
as to give carbamates and amines.