and 12) in good yields. Treatment of tellurides with thionyl chloride, bromine and iodine gave the dichloride (13–16), dibromide (17–20) and diiodide (21–24), respectively, in high yields. Both, tellurocyanate (1–4) and ditelluride (5–8) gave the trichloride (25–28), tribromide (29–32) and triiodide (33–36) when reacted with SOCl2, Br2 and I2, respectively. Treatment of 9–16 with m-chloroperbenzoic acid