Unsymmetrical tellundes may be prepared by ihe reaction of arenetellurenyl halides, generated in situ, with Grignard reagents. Selenaditeliurides. ... Unsymmetrical diorganoteilurides are well-known compounds [ 1 ] _ The most useful and general method of preparation involves the reaction of an aryltel- lurium trichioride with an aryl- or alkyl-mercuric ... Recently, Piette and Renson [SS ] have synthesized unsymmetric tellurides by ... * FeUow of the Organizailon ...