Benzenetellurinyl acetate or trifluoroacetate in combination with ethyl carbamate effected regio-and stereoselective aminotellurinylation of olefins in the presence of boron trifluoride etherate in chloroform under reflux to give ethyl [(2-phenyltellurinyl) alkyl] carbamates in high yields. Benzenetellurinyl trifluoromethanesulfonate similarly did it even at the lower temperature of refluxing dichloromethane without Lewis acid. This reaction was ...
