A Te₂N₆Li₄ Cage Containing the Tris(<i>tert</i>‐butylimido)tellurite Dianion

Abstract

A nonexplosive, easy-to-handle TeN reagent is the Li2 derivative of the tris(tert-butylimido)tellurite dianion 1, which can be prepared from [(tBuN)Te]2(μ-NtBu)2 and tBuNHLi. The Te2N6Li4 cage in 1 adopts a distorted hexagonal prismatic structure. The reaction of 1 with PhPCl2 or PhBCl2 produces the spirocycle 2 and the four-membered ring 3, respectively.