随着有机硫化物在合成中的广泛应用,近年来有机碲化物亦获得普遍的重视。与有机硫化物相比,有机碲化物具有下述特点:(1)碲形成的σ键比硫弱,因此C—Te,O—Te,N—Te键比硫形成的相应的键易于断裂。(2)RTeR及RTe~(-)的碱性比相应的硫化物弱,而亲核性比它们强,因此可以发生多种亲核反应, With the extensive use of organic sulfides in the synthesis, organic tellurides have gained universal attention in recent years. Compared with organic sulfides, organic tellurides have the following characteristics: (1) Tellurium forms a sigma bond that is weaker than sulfur, so that the corresponding bonds formed by C-Te, O-Te and N-Te bonds are more likely to break than sulfur. (2) The basicity of RTeR and RTe ~ (-) is weaker than the corresponding sulfides, and the nucleophilicity is stronger than that of the corresponding sulfides. Therefore, a variety of nucleophilic reactions can occur,